Tuesday, December 19, 2006

UNDERWATER DIGITAL CAMERA: CAPTURING MOMENTS UNDERWATER

Memories are created just about anywhere. And when I say anywhere, I mean that memories are even created underwater – so the creation of underwater digital camera.

An underwater digital camera is not just used to capture underwater memories; some professional marine photographers also use underwater digital cameras in their business. Even marine biologists and scientists use underwater digital cameras to capture marine life and thus be able to study the life and properties of the marine life. But I think it is safe to assume that you, my reader, are neither a marine scientist nor a professional photographer. Like me, you are just some photo junkie who wants to capture underwater moments and just cant figure out how without ruining your cameras.

Please listen to me when I say that even waterproof cameras cannot withstand underwater photography. To be waterproof is to resist the water in certain levels, submerging in under the water to get the perfect shot is like throwing it out of the window expecting a pick-up truck to pass by and run over it.

Now if you’re really serious about using an underwater digital camera to capture those wacky and funny moments underwater, I suggest that you buy specialty cameras.
There are rarely underwater digital cameras, as cameras are electronic and cannot withstand water and water pressure. The closest electronics has ever got to producing underwater digital cameras are producing underwater casings for digital cameras. These casing will turn your conventional digital camera into an underwater digital camera.

If you are shooting with your underwater digital camera, you need to take note of a few things to help you come up with the best images underwater.
Remember that as you farther under water, light diffuses. This means that your underwater digital camera will produce images darker than those images you took while on land – this is because of the light diffusion the red spectrum seems darker. To avoid this, use white balance come up with natural colors. Also, pictures taken underwater will come up larger than pictures taken on land with the same zoom effect. Be sure to check your underwater digital camera’s viewfinder to check the right picture angle and size that you want.

An underwater digital camera with its built-in flash will produce marine show phenomenon. It is a phenomenon wherein your pictures come out as blurry and with white particles floating above it, to avoid this phenomenon it is advisable to use external flash for your underwater digital camera.

Before using your underwater digital camera, submerge the camera in the water first for several seconds then check if there are leaks through the case. Make sure that no grain of sand or piece of hair is stuck in between the seal to make sure that water will not permeate the case and thus wet your camera in the process. It is also advisable to put silica gel or two inside the case of your underwater digital camera as long as they don’t disturb the camera’s operation. (Silica gel will keep the moisture from forming inside your camera case.)

Most underwater digital cameras come with optional lenses. Don’t be afraid to add these lenses to your underwater digital camera kit. Macro lenses will help you capture small things without getting too close and startling your subject.

Also, remember to always wash of salt when you’ve used it under salt water. If the salts are not washed off, in time they will crystallize; act as sands and cause leaks for your camera case. In cases when sands seem to get into the case, they are better washed off with streams of water.
Check out Sony, Nikon and Canon’s website for available underwater cases for your digital cameras.

Thursday, December 14, 2006

Digital Camera- The Future of Digital Camera

Basically a digital camera is a deice use to capture pictures without the use of films. Unlike the conventional camera, the digital camera does not rely on mechanical and chemical processes. It has a built in computer and records the images it captures in an electronic form. Having and operating one does not even require the use of electricity.

Since the images that a digital camera captures is in electronic form, it is a language recognized by computers. This language is called pixels, tiny colored dots represented by ones and zeros that make up the picture that you just took. Just like any conventional cameras, a digital camera is furnished with a series of lenses that focus the light and creates the image that you want to capture. The difference here is then; a conventional camera focuses its light on a film while a digital camera focuses the light into a semiconductor device that electronically records the light. Remember the built in computer, it comes in here and breaks this information to digital data resulting to all the features of the digital camera.

Another feature of the digital camera is that it has a sensor that converts light into electrical charges. A charge coupled device or CCD is an image sensor that is found in a digital camera. While other low-end digital camera use complementary metal oxide semiconductor or CMOS as an image device, it can still become better and more famous in the future but most engineers are do not believe that it can replace the CCD for higher-end digital cameras.

A collection of tiny diodes, the CCD gathers electrons when they are struck by photons or the light particles. Each diode or photosite is sensitive to light, meaning that the brighter the light, the number of the electrons gathering will be larger

The price of a digital camera nowadays have been depreciating, one of the main reasons of this is because of the introduction of CMOS image sensors, this is because CMOS sensors are less expensive and are easier to manufacture than CCD sensors. A CCD and CMOS sensor works the same way at first, by converting the light electrical charges into photosites. Simply putting it, is to think that a digital camera works in such a way as thinking that the millions of tiny solar cells, each of which forms a part of the whole image. Both CCD and CMOS do this task using different methods.

When shopping for the best digital camera, take note of these key features.
Image quality. Check the resolution of the camera. The higher the resolution, the more thou will be able to enlarge your picture without the grainy or the out-of-focus effect that we all want to avoid.

Lens. Choose a digital camera with better digital zoom. The digital zoom of the camera will enable you take the pixels from the image sensor and incorporate them to make an image.Power. Always opt for rechargeable batteries, they can always come in handy, plus you don’t waste as much money on the disposable ones.

Options. So you can brag to your friends how good a photographer or artist you are. Or choose the one that gives options that best cater to your lifestyle, so you won’t ever whine how you never get the right pictures.

Memory. If you’re a photo freak, be sure that you have enough memory in your camera to take all the wacky, freaky, funny and just about any photo you can. Think 512MB if you’re a photo junkie and takes pictures of just about anything.

Computer Interface. Always make sure that it is compatible with your PC, laptop, palmtop or whatever your local picture printer software is, you don’t want to go running around the whole state or the country looking for a computer that’s compatible with your digital camera, wont you?!

Physical. If you are going to be bringing it everywhere, choose a handy and portable digital camera. This way, it won’t always feel as heavy and bulky as those cameras that you see professional photographers are always dragging on their neck. Don’t they ever get tired of that?!
These are just the basic things you have to look for in a digital camera when you buy one. A digital camera is so great that it is quickly replacing all conventional cameras in the market, with all its technology and portability, truly the digital camera is the future of cameras.

Wednesday, December 06, 2006

Want To Have The Best Digital Camera? Follow This Tips...

It seems that every month, if not every week, different manufacturers are coming up with the latest digital cameras to entice potential clients. And it's just not working for us!

After spending sizeable amount of time at the mall figuring out which is the best digital camera for us, we finally have enough money to buy for that eye-popping, 7 mega pixel, 10x digital zoom, potable, candy colored, up to 512MB expandable memory of super hi-speed SD memory card and not to mention very portable, (that will be the envy of almost everyone we know). We march to the mall armed with our life savings and lotsa pride in ourselves, when we pass by a new display - an eight mega pixel, up to 1G expandable memory, with built it mic and stereo surround, video playback capable, with 22 scenic modes kind-of-camera. And we sigh because the producer of this amazing gadget claims that this is the best digital camera yet out in the market. And so as we always want to have the best, armed with our life savings and a few credit cards, we buy the "best digital camera." But then again, that doesn't last too long, after two months or so, there's another "best digital camera."

And so it confuses us. What makes a digital camera, the best digital camera?

Well, there are certain factors to consider when looking for the "best digital camera" for us.

MEGAPIXELS. One of the most important features of digital camera to make it into the best digital camera category is its mega pixel property. The higher the mega pixels the better the actual photograph will come out. A mega pixel is equivalent to one million pixels. The resolution of your image is based upon the mega pixel property of your camera. This means that as you enlarge the picture, you would get more detail and less blurry colors.

LCD SIZE. The best digital camera will always have a large LCD to help you frame your subject without having to squint to the viewfinder. This is also helpful when reviewing your images, some cameras enable touch up and editing features with its LCD. A 1.5-inch display is average, a 2-inch LCD display is good, but the best LCD size would be 2.5 inches or higher.

ZOOM. Most digital cameras have both digital and optical zoom. A higher optical zoom is always better than a higher digital zoom. Digital cameras are usually furnished with optical of between 3x to 10x. The better the optical zoom, the higher it climbs up to the best digital camera category.

MEMORY CARD. Always make sure that your memory card is the right one for your digital camera. There are different types of memory card like the xD, SD, Flash card and the likes. And these types of memory cards go with certain types of digital cameras. of course memory storage is also up there in choosing the best digital cameras. Choose the size of memory that you need, if you're a photo junkie, you might need more than 32MB. Memory cards can go up to 1G.

The key point to find the best digital camera is to find one that will best fit you and your lifestyle. Don't just buy the latest or the one that claims they are the best digital cameras out in the market. You wouldn't want to buy a DSLR and use it with your home activities or family outing and have to lug it around?! Or you don't want to buy the latest point and shoot camera when you're serious about being a professional photographer. (Of course, you can use this for starters, but if you're not a novice photographer anymore, you wouldn't want to get this kind of camera.)

Actually, the best digital camera is the one that you will enjoy and use. Not the type that you'll just leave rotting in its box or after a few weeks of usage or so, up there in the attic.

Saturday, December 02, 2006

Trusting Digital Camera Reviews

Digital camera reviews are abundant not just online but also in the newspapers, magazines and even TV shows. We often wonder why most digital camera reviews always praise all the digital camera out in the market, that’s why we end up getting confused on which product to buy or get our loved ones. ]

Here’s one thing you should never trust regarding digital camera reviews - never trust press releases or reviews that are directly from the manufacturer or advertising office that is directly connected with producer of the digital camera. Why?! Well because these digital camera reviews are never too truthful, or they just give out the good points about their products. I mean, what would you expect, supposing you own your own line of digital cameras and to boost your sales, you release digital camera reviews about your products. Of course you wouldn’t point out the bad things or the glitches of your product in your digital camera reviews, because that way you will never be able to shoot up your sales. Press releases or digital camera reviews from manufacturer are always half-truths. Haven’t you had any experience with that?! I mean, that just doesn’t go for digital camera, remember that brush-blower thingy that you bought over the internet that says it would work tremendously for your hair, but ended not working for your hair after all. Press releases are press releases, meaning that they are aimed to get people to buy the product or to give the product a better name.

On more thing that you can never fully trust are home shopping networks and advertisements. As much as press releases, they pretty much pose the same claims about their products. But hey, don’t trust me, you can always get them and return them after proving to yourself that it doesn’t work. Never mind the time and effort that you’ve wasted, you chose to listen to a half-truth digital camera review, that’s what you get for that.

The best digital camera reviews available are those found in specialty magazines (computer based and technical magazines), special websites catering to techie stuff and unofficial digital camera reviews. Why?! Well because! Because these digital camera reviews are always truthful. These reviewers and critics are never afraid to list down the good as much as the bad points of digital cameras. These digital camera reviews usually points out the difference between the products that a certain manufacturer has released and how it is worse or better than the previous one. These reviewers and critics are also knowledgeable in their craft, so its say to safe to say that they know what they are talking about when it comes to digital camera reviews. One more thing, most of the time, these digital camera reviews are actual first hand experience with the product itself and not just some advertising agent asked to come up with flowery words to capture you and your wallet.

Another best source for a digital camera review is one that you can write yourself. And how can you do that?! Of course, you first need to buy your own digital camera, try it out and compare everything that you do with it to the things that it claims to be. (be careful to read the specs, options and features that you need to try out, be on the lookout for words such as weatherproof, meaning that they are splash resistant as to waterproof that are water resistant. You don’t want to get your newly bought weatherproof camera wet, just to prove to yourself that the things they claim are not true). After doing so, then you can write your own digital camera review or reviews, depending on how many things you’ve learned from your digital camera. Be sure to indicate that your review is an on-hand experience with the product and not just some wild guess.

The most honest digital camera reviews are the best reviews you can look for and trust. Anyway, you can always call customer center or return your digital camera if they don’t live up to their claims.

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