An underwater digital camera isn't just designed to catch underwater memories; a few superb nautical photographers also employ underwater digital cameras in their business. Even oceanic biologists and experts use underwater digital cameras to be able to catch sea life and thus be able to study the life and properties of the oceanic life. But I think it will be safe to visualize that you, my reader, are neither a marine scientist nor a professional photographer. Like me, you might be just some picture junkie who wants to capture underwater moments and just cant determine just how without ruining your own camera.

Please listen to me when I say that even waterproof cameras are unable to survive underwater photography. Being waterproof is to withstand the moisture in certain tiers, submerging in under the water to get the ultimate shot is like tossing it from the window waiting for a pick-up truck to pass by and run over it.

At this moment if you’re really serious about making use of an underwater digital camera to capture such fanatical and funny situations underwater, I suggest you get specialty cameras.

You can find few underwater digital cameras, as cameras are electronic and cannot resist fluid and water pressure. The closest electronics has ever got to generating underwater digital cameras are manufacturing underwater casings for digital cameras. These containers can switch your standard digital camera into an underwater digital camera.

In case you are capturing with your underwater digital camera, you need to bear in mind a few things to help you come up with the best images underwater.

Do not forget that when you go farther under water, light diffuses. In other words your underwater digital camera will deliver pictures darker versus those images you took while on land – it is because of the light dispersal the red spectrum appears darker. To prevent this happening, employ white balance come up with natural colors. Additionally, images taken underwater will come up larger compared to images taken on land with the very same zoom effect. Be sure to assess your underwater digital camera’s viewfinder to check the right image angle and size that you desire.

A strong underwater digital camera along with its built-in flash will deliver oceanic show phenomenon. It can be a phenomenon where by your photos come out as wooly and with white particles suspended on top of it, to avoid this phenomenon it is advisable to choose external flash for your underwater digital camera.

Just before using your underwater digital camera, swamp the camera inside the water initially for several moments subsequently check whether you will find leaks through the case. Make certain that absolutely no grain of sand or portion of hair is trapped in between the seal to make sure that moisture will not permeate the case and thus wet your camera at the same time. It is equally advisable to add silica gel inside the case of your underwater digital camera as long as it don’t disrupt the camera’s function. (Silica gel will keep the moisture from forming inside your camera case.)

The majority of underwater digital cameras come with optional lenses. Don’t be afraid to add these lenses to your underwater digital camera bundle. Macro lenses will help you capture small things without getting too close and surprizing your subject.

Also, remember to always cleanse off salt when you’ve used it under salt water. If the salts aren't washed off, in time they are going to crystallize; behave as sands and cause leakages in your camera case. In cases when sands seem to get into your case, they are more effective washed off with streams of water.

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By: Monty Alexander

For the best photographs, the technology has to be digital. The global market is flooded with digital cameras today, but the undisputed leader is Nikon. Nikon digital cameras are the most trusted device among both professional and amateur photographers. Nikon has always brought in newer technologies and innovations to its products. The latest Nikon Coolpix P80 digital camera is yet another addition to its kitty.

This latest Nikon Coolpix camera comes with an 18x zoom and a 27-486mm lens for great clarity for taking pictures. It gives a lot of options for wide angle and telephoto shoots at wide aperture angles. The 2.7 inch LCD screen provides great view for a better shot, even in sunlight. It also comes with an electronic viewfinder to help you find your great picture. This cool camera weighs just 14 ounces and is compact and comfortable to carry with a rubber grip and thumb rest. With a black plastic body, it is solid and looks classy as well!

The 10 megapixel Nikon P80 digital camera gives you many shooting options to choose as well including manual, program, scene exposure and movie capture. With a great battery back up, it can take up to 250 shots per charge, according to CIPA standards. Navigation on this camera is also easy with large switches and clear delineation between buttons. The back dial that controls the shutter, aperture and exposure compensation can also be used for navigation. Shooting controls include exposure compensation, focus modes, flash, red-eye removal and self-timer.

The new Nikon digital camera comes with a lot of choice for ISO sensitivity as well, ranging from 64 to 400. Sensitivities range from reduced resolution modes, to high sensitivity to fixed range auto mode where you can choose from three ranges. As for image quality, this digital camera offers options for optimization of size, quality, contrast, sharpness and saturation. It also gives full control to the user to adjust white balance, noise reduction, flash exposure compensation and distortion control. A 30fps VGA movie mode ensures commendable AVI clips at a bit rate of about 1.1 megabytes per second.

Digital cameras from Nikon are available online as well, on renowned internet shopping portals. These online malls also offer great discounts on these cameras as well as other products. You can also check out customer reviews on Nikon cameras and compare prices with other brands. So get your hands on this new gadget and never miss a great shot!

Monty Alexander has written many articles on digital camera – canon digital cameras, nikon digital cameras, sony digital cameras etc.

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Top of the Line Digital Cameras by Warren Lynch

If all of this sounds a bit too expensive for your blood, then you'll probably find all of the digital camera that you'll ever need way down in the $99 to $500 price range and you'll never have to worry about buying extra lenses. Digital SLR cameras aren't for everyone but, if they're for you, then there are plenty of models to look at. Some of the best are made by Canon, Olympus and Nikon which are familiar names in the photography worl

These prices are not out of line if you make your living shooting pictures. You can actually create additional revenue streams when you shoot digital pictures, instead of film-based ones, by offering image enhancement options and all sorts of digital FX options for thee prospective bride and groom's on their treasured wedding album.

Of course, there are also starter-priced digital SLR cameras available. The Olympus E-20N, a 5.0-megapixel SLR camera, which includes a non-replaceable lens that is capable of duplicating a 35 mm to 140 mm lens, runs around $3500. 
Because the digital SLR cameras are more professional, they come with a hefty price tag. A 6-megapixel Nikon D100 runs around $2,000 and the 11-megapixel Canon 1D runs near $8,000. This is for the camera body only and does not include a lens! This is why I mentioned earlier that you should look for a digital camera that will mount your existing lens collection. Just a good quality zoom lens can run you at least $3,000 and can climb as high as $10,000 depending upon the features!

The better digital SLR cameras let you mount different lenses just like their film-based counterparts do. Many of your existing 35mm lens may be compatible with a digital SLR. If you have a large lens collection then you should definitely look for a digital SLR that is compatible with them. 
The SLR uses a mirror that is located behind the lens as well as an optical device known as a pentaprism to channel the light that enters the camera's lens to the optical finder. When you release the shutter the mirror moves out of the way and the image is captured in the same way as any digital camera.

The top of the line SLR digital cameras rival the best film-based SLR cameras and are designed for serious hobbyists and professional photographers. Digital SLR cameras are much larger, bulkier, and heavier than traditional digital cameras. 
An SLR camera provides a much more accurate image through the viewfinder than a digital camera produces on its LCD because the LCD does not faithfully reproduce the colors and light intensity that is actually entering the camera. 
An SLR camera displays an image through the viewfinder that is exactly the same image as the camera sees and is exactly the same image that the camera is going to record when you release the shutter.

If you think that digital cameras are for snapshots only, then you obviously haven't heard about SLR (Single Lens Reflex) digital cameras. SLR is a type of camera which has one lens for composing the frame and capturing the image. SLR cameras are also known as TTL (through-the-lens) cameras.

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The Fuji Film Finepix AV 100 represents excellent value for money for an entry level camera and is packed with a whole host of valuable features, some of which will be a real benefit to the new or aspiring photographer.

Some other features are likely to cause more professional photographers to be dissapointed however, especially the lack of recordable sound when using the zoom feature.

However as a holiday or travelling camera we think it's ideal and not to be sniffed at for it's relatively low price.

Features include:

• 12.2 effective megapixel
• 1/2.3-inch CCD image sensor
• Fujinon-branded 3x optical zoom lens.
• Maximum image resolution is 4,000 x 3,000 pixels in the camera's native 4:3 aspect ratio,
• both 3:2 and 16:9 aspect ratio modes are also available.
• Focal lengths ranging from 5.7 to 17.1mm (equivalent to 32 to 96mm on a 35mm camera)
• A two-step aperture offering either F2.9 or F8.8 at wide angle, and either F5.2 or F16 (with an ND filter) at telephoto
• Minimum focusing distance 3.9 inches in Macro mode at wide angle, or 1.2 feet at telephoto.
• 2.7-inch LCD display with 230,000 dot resolution,
• ISO-equivalent sensitivity ranging from 100 to 1,600 ordinarily, but can raise the maximum to 3,200 equivalent at a reduced resolution of three megapixels or below.
• Exposures are determined using 256-zone metering, and shooting modes include Auto, Program, and a generous eighteen scene modes that allow a modicum of control over the look of images.

Sadly the AV100 doesn't offer any form of optical or mechanical stabilization, relying on clever software instead, burst shooting is possible at up to 1.6 frames per second, albeit with a burst depth of only three shots.

Images are rendered in a 'default' JPEG-format still images, for video Motion JPEG-compressed AVI video with monaural audio is also available with resolutions including high-definition 720p (1,280 x 720 pixels) at 24 fps, as well as both VGA and QVGA (640 x 480 and 320 x 240 pixels) at 30 fps.  One left out feature however which seems a little strange is that the AV100 allows use of the zoom lens during movie recording whilst it simultaneously mutes sound recording whilst doing so.

You will also need to purchase some external memory, as the Fuji FinePix AV100 stores its data on Secure Digital cards, including the newer SDHC types, though the onboard 9MB of built-in memory is only really enough for a few test shots.

Pictures can be outputted with either a USB 2.0 High Speed data and NTSC connection or a PAL standard definition video output connector. Power comes from two AA batteries, with alkaline disposables included in the product bundle. Battery life is rated at 180 frames using the included alkaline batteries, or 400 frames when using 2.700mAh NiMH rechargeable batteries, though this will undoubtably vary depending on batteries.

You can purchase your Fuji Film Finepix AV100 here

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