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Is any one using a polaroid screw on lens's on their digital camera to take aqu tank photos. If so what is your opinion please.

Keith

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Hi keith,
Polarisers are great for removing reflection but they will reduce the light coming through the lens which will extend the exposure. You may need a tripod. By all means use one to photograph the tank but Don't use the flash!

james747

Thank you for the info it certainly is appricated

I have the Nikon 4500.

I was told it would slow down the shutter speed but to compensate this push up the shutter speeds two stops.

How does that sound.

I have ordered the lens but could be some time before it arives in Melb.

Keith

Near enough is not good enough, therefore good enough is not near enough, and only your best will do.
I VOTE DO YOU if not WHY NOT?
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Hi Keith,
If they are talking "stops" they would be refering to apeture not shutter speed. When on apeture priority the camera will select the speed that matches the apeture selected (particularly with the polariser on). This will ensure you get correct exposure. Select a "wide" apeture eg. f2.8 and the camera will give you the corresponding shutter speed. If you use "manual" and try to increase shutter speed beyond what "auto" gives you, you will under-expose. You may have to put up with slow speeds but you will get far more detail in the tank than if you use flash. The flash will cause shadows particularly at the back of the tank making it more difficult to see detail there.
Cheers, James.

Last edited by james747 at 17-Jan-2005 03:21

Polarizers
Yes it'll reduce the ammount of light by a few stops...sometimes usefull...but honestly polarizers make all the difference....especially in a situation such as a tank which could be considered along the lines of a studio shoot (you can increase the light if you wanted to whereas it's more difficult to do in nature) I'd say get one. I use my polarizer from my SLR on my digital....takes a bit of fiddling but worth it in most cases.

EDIT: Unless you're shooting manually there'll be no need to push anything....the camera does it all for you....

^_^
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Last edited by Babelfish at 17-Jan-2005 11:41

Thank you all for the help. When I get it the camera shop will explain it all to me, that is never a problem, also I can contact them 7 days a week for any info I require. This is the same camera shop where I attended their free digital & 35mm courses.

Keith

Near enough is not good enough, therefore good enough is not near enough, and only your best will do.
I VOTE DO YOU if not WHY NOT?
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<-- Doesn't use filters of any kind....

Meriadoc, try a polariser some time. They're great on sunny days too. Helps deepen colours and removes alot of glare!

yep using a polarizer or an ND filter properly is just like being able to use fstops or shutter speed properly.....effects filters on the other hand ....well that's another story entirely.

^_^

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ever seen the effect of a polarizer on a ultra wide angle lens? It ain't pretty

that'll give you a reason why i don't use them...

that and i don't need to use polarizers when i'm shooting wildlife..