Filters for natural light

Hi Guys,

I have read some articles concerning using filters etc - they get way too technical for me.

What setup do you recommend for me to try in the following application:

Nikon D100, 12-24mm Lens Subal Housing and dome port.

The subject will be Mantas in 7m depth - viz will be average to good (I hope)

I have visited this site before and used twin YS 120 strobes on a F90 with some good results.

Thanks

ron

Hi Ron,

Will you be using a diopter with the lens?

If so, that might limit your choices, as I have heard (haven't tried) that if you stack filter rings on the 12-24DX you will get vignetting.

Cheers

James

I would use the Hoya FL-D at 7m. It has the advantage of being more flexible. An FL-B filter will be too strong at that depth but still managable.

If you use a diopter, the filter may have to go on first since the diopter will protrude from the lens ring. Mild vignetting does occur and clears up by 14mm. I suspect you could use the 77mm diopter, then a 77-82 adapter ring, and finally an 82mm filter. I don't have the parts to test that, though.

You may be able to delete the diopter for manta rays since the subject distance won't be so close.