| Imported post
Digital cameras.
Well lads, this what I do for a living, so, are you sitting comfotably,
Then I shall begin;
All digital cameras are a compromise, this is between the number of pixels, the more you have the more you can zoom in (enlarge) the picture before you can see the pixels (becomes pixelated), but, this means that the pixels become small, this means that they are unable to absorb a large amount of light before they become saturated (full). If you thenk of them being as being a bucket, when they are full they overflow, this is called blooming. Anti-blooming circuitry is part of CCD (digital) camera design, this is there to minimise this effect.
When you are choosing a camera you have to think about what you want to use it for and then judge which is best.
For my money, the ideal compromise for underwater cameras, is a 2/3 inch (18mm diagonal) CCD with 3 - 4 million pixels.
I have an Olympus C300 Zoom and a Nikon DX100, the DX100 is an SLR, to be honest, I needed a lamp to get the best results and I am still experimenting with various types, but thats another story.
One big, and I mean big fault with digital cameras is there reliance on autofocus, there are various types out there, but they all require a certain amount of light to work. Strobes do little to really improve the quality of images taken, but a video lamp will. It gives more light plus aids the autofocus. I have found to get the best results you need a lamp with a colour temperature of around 6000 deg. Kelvin. The lamp will also help to minimise the delay you get with a digital camera.
If anyone wants some more advise, please mail me, I am only to happy to help.
Andrew
 |