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New 35-100mm f2.8 and ND filters

Started Feb 27, 2019 | Discussions thread
OP maggiemole Senior Member • Posts: 1,988
Re: New 35-100mm f2.8 and ND filters

epozar wrote:

"gradually adding one at a time to build up to a 5-stop"
You know that all that makes for less sharpness because of more and more glass surfaces right? Any color cast will be pronounced too!

I hadn't appreciated that adding more glass would reduce sharpness (duh!!) - so thank you for that! Tiffen kind of encourage stacking with their screw system, though I should have thought about it.

The ones I have are meant to have zero colour cast and it's difficult to detect any by visual inspection. But the stacking effect will certainly increase any colour cast, as you say. Back to the laboratory ....

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