A variable contrast neutral density filter using to polarising filters on top of each other to create the exposure reducing neutral filter. Has a scale with minimum and maximum positions.

The 82mm filter kit comes with four separate rings to suit lenses with a 67mm, 72mm, 77mm or 82mm filter ... for use with the ...

At $250 for the 77mm size, the PolarPro Variable ND Filters aren’t cheap, but the design and image quality seems to match the high-end price. Tiffen’s variable neutral density filter provides ...

HAPPAUGE, N.J.—Tiffen has introduced a professional light control filter kit made specifically ... the ND16 offers a 4-stop reduction; and the ND 32 reduces light by 5 stops, it said.

This symbol is then followed by the diameter’s length measured in millimeters: Ø43 (43mm), Ø49 (49mm), Ø52 (52mm), Ø58 (58mm), Ø62 (62mm), Ø68 (68mm), Ø72 (72mm), and Ø77 (77mm ... You can see that ...

High-stop NDs can even capture solar eclipses, though there's the possibility of equipment damage if you don't block enough light, so check whether the ND filter can block enough sunlight before ...