LX7 and B&W ND110 10 stop ND filter

Started Mar 5, 2013 | Discussions thread
OP MustangJoe Regular Member • Posts: 153
Re: A 'polarizing' suggestion.

morepix wrote:

Erik Ohlson wrote:

A SECOND point - simply using 2 polarizers would give you the ability to "cross" them and thus have a VARIABLE neutral density effect which could get the effect you were looking for without quite such a long exposure - and you wouldn't need any ND filter, as such.

Isn't that how (most?) 10-stop ND filters work: two polarizers in one filter mount?

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Hi David,

Most of the 10 stop filters are a single plane of glass. While you can use two polarizers to simulate an ND filter, they suffer from some problems. The first is that at higher densities, you'll get a weird cross type pattern showing up. The second is that you get a pronounced colour cast. Check out the examples here.

The ultimate guide to ND filters is a pretty good article about extreme ND filters and how to use them.


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