Variable neutral density (ND) filters are handy tools for photographers, in that their opacity can be adjusted simply by rotating them. So, why not use them for adjustable-tint sunglasses? Well, ...
The Benro NE1 Electronic Variable ND Filter Kit got rather a lot of attention when it was first unveiled last year, and it goes live on Indiegogo tomorrow for an early bird price of $228. We normally ...
Variable NDs can tend to vary wildly in quality. A new set of variable NDs from Moment are a set of filters that aims to ensure the highest quality at a what turns out to be a very sensible price ...
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