search box
result
Tuesday, July 28, 2009
bloging dapet duit...mau???
manfaatkan blog, wordpress, ataupun multiply untuk mendapatkan rupiah...
bergabunglah bersama kami di kumpulblogger bebas biaya...
semua hanya membutuhkan niat dan kerja keras maka kita akan sukses...
selamat mencoba dan bergabung....smoga sukses....
JOIN
kunjungi kumpulblogger.com
Tuesday, July 14, 2009
journalism
Photography JurnalistikDefinisi photography can be concluded with the characteristics inherent in the images produced.
The characteristics of photo journalists:
1.Memiliki news value or become the news itself.
2.Melengkapi a news / article.
3.Dimuat in the media.
A photo can stand on its own, but without a photo journalistic feel less full, the image so important, because the image is one of the visual media to record / or perpetuate a narrative of events.
"All the image is basically the documentation and photos are part of a journalistic photo documentation" (Kartono Ryadi, Kompas daily photo editor). Photo journalists, the difference lies in the choice is, make photo journalists, which means selecting a suitable image. (Ex: in the wedding events, documentation means taking / take photos all events ranging from reception to complete, but a journalist take a photo only of interest, whether or public figure at the cutting time "tumpeng tumpengnya" fall, khan interesting) things that distinguish between photo documentation with the journalists, the image is limited to whether the image was published (the media) or not.
The value of a picture element is determined by a few:
1. Timeliness.
2. Related to the news.
3. Extraordinary events.
4. Campaign.
5. Interest.
6. Human Interest.
7. Universal.
Photo journalism divided into several sections:
1. Spot news: The images insidential / without planning. (ex: an image of disaster, riot, etc.).
2.General news: Photo of the plan (ex: SU MPR photo, sports photo).
3.Foto Feature: Photos to support an article.
4.Esai Photo: Collection of some images can be told.
Photo of a successful
Limitation successful or not depends on a photo journalism in the preparation of cooked and hard work rather than the fortune. Indeed can not be denied that there was an image that is the result of "being in the right place at the right time". But a professional journalist is a journalist who research the subject, capable menetukan events such as the image potential and what will support it (anticipation). That's all very important considering that a good moment lasted only seconds, and the impossible to repeat it again.
Ethics, empathy, this world is a very important and a value that journalists have in the photos.
A photo journalist can describe the incident should indeed work through the photos, the resulting core image should be told so that people without the need to explain is to understand the content of the images and manipulate images without it.
Saturday, July 11, 2009
Digital Camera Buying Tips
Customize purposes Megapixel
Many ads that mengexpose megapixel, but also many of us do not understand up to what we need a megapixel. Usually, the larger of a megapixel camera, the price will also be more expensive, but for picture quality, large megapixel does not guarantee good quality. A digital camera with 2 megapixel image is enough for day-to-day and enough to be viewed on a computer screen and printed up to size 6R. If you plan to print on the size of the large, required at least 3 megapixel. Then if I still want to print larger again, then the greater the megapixel is you need. However, if imposed, megapixel camera with a small can still print on the paper size is large, but sometimes the results will look blurred.
Note the battery and chargernya
If your camera uses lithium battery, pemakaiannya does not require too much attention, just charged and life, I completed used, please call in again. Bebeberapa camera using AA battery type. For this type, we may choose to use alkaline battery, or battery that can be charged back. We always recommend that every user to use the rechargeable type of battery than alkaline type, the price of the rechargeable battery a little more expensive than alkaline, but kemampuanya used several times (can be filled back up to 500x the normal), then the price of this battery will be much cheaper . Detailed explanation about this battery, can be sought in other articles on this site. But please be careful not to buy the rechargeable battery type AA is false, because now many outstanding dipasaran.
Optical Zoom (Zoom and Digital)
Perbesaran optical images (this is different with the digital zoom). We try to get a camera with at least 2x optical zoom. Most digital cameras have optical zoom facility, and this is very useful for the interests of our mengabil picture for quite a distance away from where we are. Do not terkecoh with digital zoom, the average digital camera has all the digital zoom facility, but the results perbesaran with the digital zoom will result in the images we so broken and unclear. We suggest that when not forced, always try to avoid the digital zoom. Digital zoom can also do with the software on the PC.
Help facility for low-light
In the light conditions that are not clear, it is usually difficult to get the camera will focus before we shoot the object. Therefore, some digital cameras are equipped with light assistance (various shapes), which works to help place the images on the less light. This is very important especially in the photos in the room.
Note Storagenya Memory
Some cameras have internal memory inside, but the capacity is usually not too large. Therefore, we must ensure that our digital camera equipped with a port for external memory, so that we can provide additional memory dngan according to our needs. There are different types of memory that can be used in digital cameras, types and shapes are tailored to the type of digital camera. The price varies, but the larger capacity, then the price will be more expensive as well. Internal memory is in digital cameras you can ignore when the digital camera does not have such facilities.
Try the camera before you buy
Digital camera is almost the same as other digital media, usually equipped with menus and buttons with the controller is adapted to our purposes. camera have some that are easy to understand compared to other types. Comparisons can be easy or difficult, if you have to try it. Also note the time delay from the start we press the button to shoot a picture taken finish (SHUTTER lag), there is a camera that delay very long, but this is also a condition of space and light where we try camera. Try also zoom lenses (optical zoom), whether it can be used easily and quickly. Also know how long time must be awaited from the camera until the camera is ready for use. Do not forget to try the LCD and viewfinder.
Learn as much as possible information
It's good to know you first capability, specification, and the lack of a camera that you purchased for the appraiser. Ask the experts, or people who have been using will help us to determine whether the camera is eligible to be purchased. Some websites on the internet provides many reviews about digital cameras, ranging from the global review detail-up to review the details. Place a discussion on the Internet is also highly recommended for reference is made before buying a digital camera.
Enhancements
Many digital cameras are equipped with additional features, one who is always there is the ability to record a moving image (video). In the digital camera, this feature only as an additional and very limited ability. Please do not specify your decision to buy a digital camera from the camera's ability to record video. Results from the video recording digital camera will not be maximal, a digital camera designed for still images the maximum. If you want more video recording, you should consider to buy handy-cam or a similar tool that was made to record video.
Consider buying a card reader
Card reader is a tool that is used to read the memory card on digital camera. At the time we buy a digital camera, must have included cable and driver to transfer / move images from camera to computer. However, if we use a tool called a card reader, then we will save time to transfer from the camera to the computer and be done in a way that is very easy, besides if we use a card reader, then we do not need the camera is turned on (on) and finally, we also age battery can save us
Wednesday, April 22, 2009
Digital SLR Camera Nikon D5000
Nikon Digital SLR Camera D5000 SpecificationsType Type Single-lens reflex digital camera Lens mount Nikon F mount (with AF contacts) Effective picture angle Approx. 1.5 x lens focal length (Nikon DX format Effective pixels 12.3 million Image sensor 23.6 x 15.8 mm CMOS sensor Total pixels 12.9 million Dust-reduction system
Image Sensor Cleaning, Image Dust Off reference data (optional Capture NX 2 required) Image size (pixels) 4,288 x 2,848 [L], 3,216 x 2,136 [M], 2,144 x 1,424 [S] File format NEF (RAW)
•JPEG: JPEG-Baseline compliant with fine (approx. 1:4), normal (approx. 1:8), or basic (approx. 1:16) compression
•NEF (RAW) + JPEG: Single photograph recorded in both NEF (RAW) /and JPEG formats Picture Control System Can be selected from Standard, Neutral, Vivid, Monochrome, Portrait, Landscape; storage for up to nine custom Picture Controls Media SD memory cards, SDHC compliant File system DCF (Design Rule for Camera File System) 2.0
DPOF (Digital Print Order Format)
Exif 2.21(Exchangeable Image File Format for Digital Still Cameras)
PictBridge Viewfinder Eye-level pentamirror single-lens reflex viewfinder Frame coverage Approx. 95% horizontal and 95% vertical Magnification Approx. 0.78 x (50mm f/1.4 lens at infinity; -1.0 m-1) Eyepoint 17.9 mm (-1.0 m-1) Diopter adjustment -1.7 to +0.7 m-1 Focusing screen Type B BriteView Clear Matte screen Mark V with focus frame (framing grid can be displayed) Reflex mirror Quick-return type Lens aperture Instant return, electronically controlled Compatible lenses •AF-S and AF-I NIKKOR: All functions supported
•Type G or D AF NIKKOR not equipped with an autofocus motor: All functions supported except autofocus
•Non-Type G or D AF NIKKOR not equipped with an autofocus motor: All functions supported except 3D color matrix metering II and autofocus
•IX-NIKKOR and AF-NIKKOR for F3AF: Not supported
•Type D PC NIKKOR: All functions supported except some shooting modes
•AI-P NIKKOR: All functions supported except 3D color matrix metering II
•Non-CPU: Autofocus not supported. Can be used in exposure mode M, but exposure meter does not function
•Lens with maximum aperture of f/5.6 or faster: Electronic rangefinder can be used Shutter type Electronically controlled vertical-travel focal-plane shutter Shutter speed 1/4,000 to 30 s in steps of 1/3 or 1/2 EV, Bulb, Time (with optional ML-L3 Remote Control) Flash sync speed X = 1/200 s; synchronizes with shutter at 1/200 s or slower Release modes Single-frame, continuous, self-timer, quick-response, delayed remote, quiet Frame advance rate Continuous high speed: up to 4 fps (manual focus, manual or shutter-priority auto exposure, 1/250 s or faster shutter speed; other settings at default values and memory remaining in memory buffer) Self-timer Can be selected from 2, 5, 10, and 20 s duration Metering TTL exposure metering using 420-pixel RGB sensor Exposure method Matrix: 3D color matrix metering II (type G and D lenses); color matrix metering II (other CPU lenses)
Center-weighted: Weight of 75% given to 8-mm circle in center of frame
Spot: Meters 3.5-mm circle (about 2.5% of frame) centered on selected focus point
Exposure range (ISO 100 equivalent, f/1.4 lens, 20°C/68°F) •Matrix or center-weighted metering: 0–20 EV
•Spot metering: 2–20 EV Exposure meter coupling CPU Exposure modes Auto modes (auto, auto [flash off]), Advanced Scene Modes (Portrait, Landscape, Child, Sports, Close up, Night portrait, Night landscape, Party/indoor, Beach/snow, Sunset, Dusk/dawn, Pet portrait, Candlelight, Blossom, Autumn colors, Food, Silhouette, High key, and Low key), programmed auto with flexible program (P), shutter-priority auto (S), aperture-priority auto (A), manual (M) Exposure compensation ±5 EV in increments of 1/3 or 1/2 EV Exposure bracketing 3 frames in steps of 1/3 or 1/2 EV Exposure lock Luminosity locked at detected value with AE-L/AF-L button ISO sensitivity (Recommended Exposure Index)
ISO 200 to 3200 in steps of 1/3 EV. Can also be set to approx. 0.3, 0.7, or 1 EV (ISO 100 equivalent) below ISO 200, or to approx. 0.3, 0.7, or 1 EV (ISO 6400 equivalent) over ISO 3200, ISO sensitivity auto control available Active D-Lighting Can be selected from Auto, Extra high, High, Normal, Low, or Off Active D-Lighting bracketing 2 frames Autofocus Nikon Multi-CAM 1000 autofocus sensor module with TTL phase detection, 11 focus points (including 1 cross-type sensor) and AF-assist illuminator (range approx. 0.5–3 m/1 ft. 8 in.–9 ft. 10 in.) Detection range -1 to +19 EV (ISO 100 equivalent, 20°C/68°F) Lens servo •Autofocus: Instant single-servo AF (AF-S); continuous-servo AF (AF-C); auto AF-S/AF-C selection (AF-A); predictive focus tracking automatically activated according to subject status (AF-A)
•Manual (M): Electronic rangefinder supported Focus point Can be selected from 11 focus points AF-area modes Single-point AF, dynamic-area AF, auto-area AF, 3D-tracking (11 points) AF Focus lock Focus can be locked by pressing shutter-release button halfway (Single-servo AF) or by pressing AE-L/AF-L button Built-in flash Auto, Portrait, Child, Close-up, Night portrait, Party/indoor, Pet portrait modes: Auto flash with auto pop-up
P, S, A, M, Food: Manual pop-up with button release Guide number (m/ft.) at 20°C/68°F •At ISO 200: Approx. 17/56, 18/59 with manual flash
•At ISO 100 equivalent: Approx. 12/39, 13/43 with manual flash Flash control •TTL: i-TTL balanced fill-flash and standard i-TTL flash for digital SLR using 420-pixel RGB sensor are available with built-in flash, SB-900, SB-800, SB-600, or SB-400 (when combined with matrix metering or center-priority metering)
•Auto aperture: Available with SB-900, SB-800, and CPU lenses
•Non-TTL auto: Supported flash units include SB-900, SB-800, SB-80DX, SB-28DX, SB-28, SB-27, or SB-22s
•Range-priority manual: Available with SB-900 and SB-800 Flash modes Auto, auto with red-eye reduction, fill-flash, auto slow sync, auto slow sync with red-eye correction, and rear curtain with slow sync Flash compensation -3 to +1 EV in increments of 1/3 or 1/2 EV Flash bracketing 2 or 3 frames in steps of 1/3, 1/2, 2/3, 1, or 2 EV Flash-ready indicator Lights when built-in flash or SB-900, SB-800, SB-600, SB-400, SB-80DX, SB-28DX, or SB-50DX is fully charged; blinks for 3 s after flash is fired at full output in i-TTL or auto aperture modes Accessory shoe Standard ISO 518 hot-shoe contact with safety lock Nikon Creative Lighting System (CLS) Advanced Wireless Lighting supported with optional Speedlights SB-900, SB-800, or SU-800 as commander. Sync terminal Hot Shoe Sync Terminal Adapter AS-15 (optional) White balance Auto (TTL white-balance with main image sensor and 420-pixel RGB sensor); 12 manual modes with fine-tuning; preset manual white balance, white balance bracketing White balance bracketing 3 frames in steps of 1 Live View AF modes Face priority AF, wide area AF, normal area AF, subject tracking AF Focus Contrast-detect AF anywhere in frame (camera selects focus point automatically when face priority or subject tracking AF is selected at the time of Live View shooting) Movie clips Image sizes (pixels) 1,280 x 720/24 fps, 640 x 424/24 fps, 320 x 216/24 fps File format AVI Compression format Motion-JPEG, with monaural sound LCD monitor Vari-angle type, 2.7-in., approx. 230k-dot, TFT LCD, approx. 100% frame coverage and brightness adjustment Playback function Full-frame and thumbnail (4, 9, or 72 images or calendar) playback with playback zoom, movie playback, stop-motion movie playback, slide show, histogram display, highlights, auto image rotation, and image comment (up to 36 characters) USB Hi-Speed USB Video output Can be selected from NTSC and PAL; images can be displayed on external device while camera monitor is on HDMI output Type C HDMI connector; camera monitor turns off when HDMI cable is connected Accessory terminal •Remote Cord MC-DC2 (optional)
•GPS Unit GP-1 (optional) Supported languages Chinese (Simplified and Traditional), Danish, Dutch, English, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish Battery One Rechargeable Li-ion Battery EN-EL9a AC adapter AC Adapter EH-5a (optional; requires EP-5 power connector Tripod socket 1/4 in. (ISO 1222) Dimensions (W x H x D) Approx. 127 x 104 x 80 mm / 5.0 x 4.1 x 3.1 in. Weight Approx. 560 g / 1 lb. 4 oz. without battery, memory card, or body cap Supplied accessories (may differ by country or area) Rechargeable Li-ion Battery EN-EL9a, Quick Charger MH-23, Eyepiece Cap DK-5, Rubber Eyecup DK-24, USB Cable UC-E6, Audio Video Cable EG-CP14, Camera Strap AN-DC3, Accessory Shoe Cover BS-1, Body Cap, Software Suite CD-ROM
•JPEG: JPEG-Baseline compliant with fine (approx. 1:4), normal (approx. 1:8), or basic (approx. 1:16) compression
•NEF (RAW) + JPEG: Single photograph recorded in both NEF (RAW) /and JPEG formats
DPOF (Digital Print Order Format)
Exif 2.21(Exchangeable Image File Format for Digital Still Cameras)
PictBridge
•Type G or D AF NIKKOR not equipped with an autofocus motor: All functions supported except autofocus
•Non-Type G or D AF NIKKOR not equipped with an autofocus motor: All functions supported except 3D color matrix metering II and autofocus
•IX-NIKKOR and AF-NIKKOR for F3AF: Not supported
•Type D PC NIKKOR: All functions supported except some shooting modes
•AI-P NIKKOR: All functions supported except 3D color matrix metering II
•Non-CPU: Autofocus not supported. Can be used in exposure mode M, but exposure meter does not function
•Lens with maximum aperture of f/5.6 or faster: Electronic rangefinder can be used
Center-weighted: Weight of 75% given to 8-mm circle in center of frame
Spot: Meters 3.5-mm circle (about 2.5% of frame) centered on selected focus point
•Spot metering: 2–20 EV
ISO sensitivity (Recommended Exposure Index)
•Manual (M): Electronic rangefinder supported
P, S, A, M, Food: Manual pop-up with button release
•At ISO 100 equivalent: Approx. 12/39, 13/43 with manual flash
•Auto aperture: Available with SB-900, SB-800, and CPU lenses
•Non-TTL auto: Supported flash units include SB-900, SB-800, SB-80DX, SB-28DX, SB-28, SB-27, or SB-22s
•Range-priority manual: Available with SB-900 and SB-800
•GPS Unit GP-1 (optional)
Monday, April 13, 2009
Nikon Introduces New Confocal NEXIV, VMZ-K6555
Nikon Corporation (Michio Kariya, President) is pleased to announce the launch of the new Confocal NEXIV VMZ-K6555. The new Confocal NEXIV VMZ-K6555 is designed for faster and more accurate non-contact 3D measurements on larger size substrates, probe cards, and other applications requiring large stage travel. Higher magnification optics is incorporated in the design of the new Confocal NEXIV VMZ-K6555.
Product Information
Product name: Confocal NEXIV, VMZ-K6555
Start receiving orders from: March 30, 2009
Product Concept
The new Confocal NEXIV VMZ-K6555 has been designed with longer XY travel (650x550 mm) to cover the non contact 3D measurement requirements of larger substrates such as recent cutting-edge interposer substrates, and probe cards with greater accuracy and faster measurement speed. In addition, the new Confocal NEXIV VMZ-K6555 optical head employing the newly designed higher magnification objective lens (30x) can be configured for better resolution power along the XY plane.
Similar to the current Confocal NEXIV VMR-K3040ZC, the new Confocal NEXIV VMZ-K6555 continues to allow for both 2D measurements on brightfield images with a CNC 15x zooming optics and 3D measurements on confocal images. Furthermore, TTL scanning laser automatic focus and Video image automatic focus functionalities have been added to the new Confocal NEXIV VMZ-K6555 for more flexibility.
For faster measurement speed, the standard confocal optics using lower magnifications such as 1.5x, 3x and 7.5x has been redesigned and employed. The system can be configured either with built-in high magnification CF optical head or with built-in standard magnification CF optical head so that it can be optimized for broad variations of complicated and smaller measuring targets on any measuring application.
Features
1. Longer XY stage strokes
650x550 mm strokes are realized for the inspection of 510 mm square interposer substrates or 500 mm diameter probe cards or any application requiring large XY stage travel.
2. High magnification lens 30x and high magnification CF optical head (Type H)
The dedicated 30x objective lens and high magnification CF optical head have been newly designed to produce higher resolution for the measurements of smaller line width and spacing.
3. Optional standard CF optical head (Type S)
Dedicated objective lenses such as 1.5x, 3x and 7.5x are used with a wider field of view for the standard CF optical head for faster measurement speed.
4. TTL scanning laser AF and vision AF now available on the VMZ-K6555
The renowned NEXIV automatic focusing capabilities have now been added to the new Confocal NEXIV VMZ-K6555 for the ability to easily accomplish much more complex measuring applications.
5. Higher resolution power and higher traveling accuracy on the Z axis
Z axis travel resolution is now 0.01 µm and traveling accuracy on the Z axis is now 1+L/150 µm1+L/1000 µm, regardless of the type of confocal optical head.
(Revised on March 24, 2009)
6. LED light source
For episcopic and diascopic lighting, the halogen light source has been replaced with LED light allowing for longer life and brighter images.
Specifications
Model VMZ-K6555
Head Type Type H Type S
Magnifications 30x 7.5x 3x 1.5x
W.D. 5 mm 5 mm 24 mm 24 mm
Confocal Optics for Area Height Measurement
Maximum scanning range 1 mm 1 mm 1 mm 1 mm
Field of view 0.4x0.3 mm 1.6x1.2 mm 4x3 mm 8x6 mm
Z measurement repeatability (2σ) 0.2 µm 0.25 µm 0.35 µm 0.6 µm
Z axis minimum read out 0.01 µm
Height measurement speed 1.5 sec./FOV
Brightfield Optics for 2D Measurement
Zooming method Motorized 5-step zoom (1-15x)
Field of view 0.39x 0.3-0.049x 0.037 mm 1.6x 1.2-0.11x 0.08 mm 4x3-0.27x 0.2 mm 8x6-0.53x 0.4 mm
Illumination Dia/Epi Dia/Epi/Ring Light
Light source White LED
Auto focus TTL Laser AF/Vision AF
Main Body
Stroke (XxYxZ) 650x550x150 mm
Guaranteed loading capacity 30 kg
XY traveling accuracy U1X/Y 1.5+2.5L/1000 µm
U2XY 2.5+2.5L/1000 µm
Z axis 1+L/150 µm 1+L/1000 µm*
Main unit weight Approx. 800 kg Approx. 850 kg*
Power source/ consumption AC 100-240 V ± 10 % 50/60 Hz / 10 A - 5 A
Operating conditions Temperature: 20 °C ± 0.5 K
Humidity: 70 % or less
Acquired standard CE marking (low voltage/EMC/Laser)
Sunday, March 29, 2009
Specials Underwater
Will you be spending your vacation on a beach, beside a waterfall or along a scenic river? Maybe you're just going to spend your time in a swimming pool with the kids. So why not shoot while in the water?
There are beautiful pictures to be had both above and below the surface of the water. Since most of us don't have the right equipment to take our SLRs under water, you've probably looked at disposable underwater cameras and wondered about their quality.
Some Basics
Earth. Perhaps our planet has the wrong name, it's mostly covered by water. We're surrounded by water in the oceans, rivers, and even in our swimming pools.
But taking photo equipment to the beach can be dangerous for our cameras and lenses. Sand, salt water and harsh sun are all concerns. There are plenty of articles full of advice about cleaning and taking care of photographic equipment at the beach, the dangers of salt water, moisture and sand. These concerns prevent many photographers from enjoying the great photo opportunities that exist on, around and in the water.
What do we need to know about underwater photography? What kind of equipment exists?
Basically there are three kinds of "wet" photography:
Surface Photography You shoot with the camera close the water's surface, showing someone swimming, surfing or just playing. You practice this kind of photography when boating, canoeing, rafting, running rapids and participating in other water sports. In this instance the camera isn't taken underwater but it's always in danger of getting wet. Some professional and even amateur compact cameras are fully sealed to allow their use in such conditions but it's not possible to fully protect most amateur and prosumer cameras, compact cameras, SLRs or DSLRs unless you purchase custom built and expensive housings.
Low Depth Underwater Photography This is photography at a depth of less than 10 meters or 33 feet of water. Most compact underwater cameras experience problems below this depth due to light loss, a weak flash or increased water pressure.
Deep Water Photography This is true underwater photography using professional cameras, underwater housings, and sealed external flash units.
Deep water photography requires a significant investment in both photography and diving equipment as well as time spent learning the skills to dive safely. Your reward is the unbelievable beauty of the flora and fauna that inhabit the seas and coral reefs.
OK those are the options for those who want to shoot in and around the water on a regular basis. But what are the options for those of us who don't want to spend hundreds of dollars on underwater equipment we'll use only once or twice a year during vacations or holidays? Equipment that will only collect dust in a closet the rest of the year.
Well for the rest of us there are disposable underwater cameras. Disposable underwater cameras are simple compact cameras (just advance the film and press the shutter release) encased in a plastic or acrylic housing. They can be used in and around the water and for low depth underwater photography, but while some are capable of withstanding the pressure of deeper water, the lack of light will render them useless in deep water.
The biggest problem with these cameras is their lack of flash. Why is that a problem?
Water acts like a big blue filter. The deeper you go, the more the red spectrum is filtered out and the bluer your pictures become. When your camera has a flash you supply your own light and your own red spectrum. The result are images with true vibrant colors.
According to the manufacturers of the disposable underwater cameras, eliminating a powerful flash avoids the risk of electric shock in case of water leaking into the case, and avoids film damage from fumes given off from batteries sealed inside the camera case. An onboard flash can also create severe problems with "backscatter". A condition where small particles floating in the water reflect the flash making it look like your subject is obscured by falling snow. All these problems are corrected on more expensive systems through the use of sealed external flash units.
So with these limitations why use a disposable underwater camera at all? Because used properly, at shallow depths where the sunlight is less filtered you can get great pictures.
Keep the following in mind:
- The water is a big filter and it also distorts the image, especially when you're shooting in strong currents. So the object is to get as close as possible - while maintaining a safe distance from wildlife.
- Check the clarity of the water. A lot of sand or small particles in suspension in the water will result in poor images. You'll generally too much sediment kicked up in the water after storms.
- Shoot between the 10 AM to 3 PM to get the maximum sunlight available. The high angle of the sun will even extend the depth to which you can shoot. The low angle of early and late sun limits its penetration below the surface.
- Don't exceed the depth your camera is rated for or you may bring a camera full of water to the surface instead of a camera full of photos.
Friday, March 27, 2009
About Composition in Photography
Composition simply meant as a way up the elements in the picture, these elements include line, shape, form, color, light and dark. The way you arrange the composition in the viewfinder will diinterprestasikan after your picture is printed. The main aspect of composition is the visual impact-an ability to convey the feeling that you want to express in your photos. Thus, you need to arrange such a way so that you achieved a goal, whether it is to convey the effect of static and silent or sesuatumengejutkan, different, eksentrik. In classical composition there is always the one point that first attract the attention attention. This is because the regulation position, subordination, in contrast or light intensity than its surroundings or the subject in such a way that the established way to bring attention to the observer at one point.
Overall, the composition of the classic has a good proportion of the fun. There is a balance between dark and light, between the form of open space and solid colors or with bright colors dim. At a certain opportunities, may be needed when you need your whole symmetrical composition. Often the images that you create more dynamic and visually more interesting when you put in the subject. You should avoid even a line of vertical divider.
To avoid an image that also required the presence of dynamic movement. This rhythm is due to the repetition many times a small-sized objects. The presence of rhythm in the striking image of a movement.
Line
Photographers often use a good line in the works to bring their attention on the subject of the main observer. Lines can also cause the effect of depth and movement of the image. When the lines themselves are used as the subject, which is going to be pictures attract attention. Not important whether the straight line, curve or circle, to bring the eyes out of the picture. The most important lines that become dynamic.
Shape
One of the most simple formula that can make a photo interesting is the attention to give priority to a visual element. Shape is one of them. We generally assume the shape as an outline for creating a shape formed, essentially, the subject image, the image is considered have the power and visual quality of the abstract. To make a protruding shape, you should be able to separate the shape from the surrounding environment or from a background that is too crowded. To create a strong contrast between shape and form a shape surrounding it. Contrast this can occur as a result of differences in light or dark color differences.
A shape, of course, does not stand on its own. When entering into a scene that contains two or more of the same shape, we can also crop a shape to enhance the image quality.
Form
When can shape their own mengindentifikasikan object, the form is still required to make an impression and three-dimensional solid. This is an important factor to create the effect of depth and reality. This quality of being derivative and light tone, which then form the lines of an object. Important factors that determine how the form is the form the direction and quality of light on the object.
Texture
A photo with a prominent image teksur can be a creative form of shape or pattern. If adequate, the texture will give realism to the image, bring depth and three-dimensional effect to your subject.
Texture can be seen clearly on the two sides are different. It's the texture that can be found when we juxtapose themselves on the subject to increase what we see, for example, when we want to photograph the surface texture sehelai leaves. There is also a time where we must reverse because the subject heading that we are the very knowledgeable. Texture also appear when a light dash surface with a low angle, shadows form in the same area.
Photographs texture is considered successful if the photographer can communicate in such a way so that the observer can feel as if the image is when the touch surface. Similar to the pattern, texture is best shown with a few variations and appears to widen out to the limit of the image.
Patterns
Pattern repeated in the form of shape, line and color are elements of other visual elements that can come into focus. The existence of a cause that the repetition effect ritmik and harmony in the picture. But, too much uniformity will lead to a boring picture. Confidential use pattern is to find variations that observers are able to catch attention.
Pattern usually is best expressed with the uniform. Although the lighting and camera angle to make shooting a picture is less likely and possible effects kedalamannya something that repeatedly become prominent.
Learn the principles of composition above, the following are some types that you can use:
Rule of thirds
Imagine there are lines that form a guide nine fruit rectangle the same on a large image. Elements of the image that appears in the corner-corner rectangular center will get maximum traction.
Format: Vertical Horizon or
Proportion rectangle on viewinder allows us to do the shooting in the landscape / horizontal or vertical / portrait. Differences in the format could cause a different effect on the final composition. Look at the viewfinder horizontally or vertically, and specify the creative decisions for best results.
Keep it simple
In some circumstances, the best option is keep it simple. It is very difficult for people to see a photo when too much attention to an interesting point. Generally, the more 'crowded' an image, the image is less interesting. Try to concentrate attention on one point and maximize resources tariknya.
Picture scale
An image that appears to be ordinary but interesting because there is a small point of interest concerns. The landscape shooting or Monument, develop shooting attraction by adding a known amount of the object as a starting point to give attention to the scale effect of the comparison.
Horizons
Alter the balance of the heavens and the earth can change the image of the radical. When the image is almost filled by the heavens will give an impression of plain and wide open sky but when disisakan only slightly at the top of the image, the impression will arise in full.
Leading lines
The eyes of the person who brought the image to see in the picture or take a picture. In general lines this form:
Lines that are visible such as the physical Marka road is not visible or directly such as shadow, reflection.
Be different
Perhaps there is shot-shooting that may be taken in addition to the approach from the front and photographs parallel to the ground. Move from near the suspected often produce an interesting effect.
Color
Make a prominent part of the picture's background. Main way to get this subject is to obtain a different color or nadanya drastically with the background.
Framing
When the subject has a special form of a strong, full-frame with the subject. Whether it is using the lens with a focus on longer or move to a subject.
Shooting position
When we feel saturated with the composition of that and only that, try meurbah perspectives fully. For example, the position of sitting or standing position to the shot from the top or bottom of the subject.
Number of subject
Taken with the many subjects that are relatively uniform, no less interesting from the view of the composition. Find one of the subjects' different 'among the many subjects it. Different mean different movement, shape and color.