Variable ND Filter

I don't have a variable but I've a buddy who uses a Singh-Ray and he loves it and he's never mentioned any distortion issues. You'll certainly will pick up some vignetting but that's fairly easy to correct. I have a couple of standard B+W's ND's and truth be told, I thought I'd use mine more than I do and now with the D800 and it's 3 levels below ISO-100, I don't know how much I'll be using my B+W's.

Are you sure you need a variable vs. standard ND filters? They're not cheap, at least not the good ones, that is.

And btw, a modern lens typically has 7 to 9 planes of glass inside them so another slab of glass isn't as dramatic a difference as it might seem.

Here is a web site if you're considering an ND filter.
Long Exposure Tutorial - Bulb Exposures - The Blog about Long Exposure Photography!

Thank you, the web site was very helpful. I want to try some really long exposures , like 8-10 stops.

I am constantly in situations were I have a split of contrast between the sky and the land. This is an ideal situation for a graduated ND because it allows you to bring out the sky better without effecting the land and this situation occurs all the time in most everyone's photography. So technically speaking ND filters are landscape tools. However I have used them before on max shutter speed 500 cameras with slower types of film to help tone down the exposure in bright daylight harsh light situations. As for the variable ones I do not know. Surely they would have to handle a basic two or three stop sky thing very good in order to be useful.

fotojack said:

Here is a web site if you're considering an ND filter.
Long Exposure Tutorial - Bulb Exposures - The Blog about Long Exposure Photography!

Click to expand...

Great link. A lot of good info.

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