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7th January 2012, 07:31 PM
#1
Genus variable ND filter.
Wondering if anybody has had any experience with the Genus variable ND filter. It's less than half the price of the Singh Ray, but I would hate buyers remorse, and I know you get what you pay for. Basically I only want it for moving water photography. At least so far.
Thanks in advance.
John
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8th January 2012, 02:08 AM
#2
Re: Genus variable ND filter.
As far as I know commercial variable "natural density" filters are just two polarizing filters stacked together. I wouldn't call them "natural density", for their attenuation depends on polarization of light and hence will have attenuate differently different parts of the image (More noticeable on the sky, I guess). Be aware of that if you buy them.
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8th January 2012, 04:21 PM
#3
Filter stacking
Here is a link to a site which explains the principle of using a pair of polarizing filters as a home-made variable neutral density filter. Although I once picked up a cheap linear polarizing filter at a rummage sale for less than a U.S. Dollar, I have not tried the combination as of yet. I don't have a lot of hope for the quality it will produce. But, it is on my long-long list of experiments for the future and for only a dollar it was worth the chance if only for experimentation...
http://www.digital-photography-schoo...density-filter
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