Andy Roberts
Well-known member
Thanks Phil... this whole discussion today made me go back and read the whole Motion Mount thread. It starts with Jarred saying 8x and so my path started by searching on what 8x meant. Ultimately, it seemed, as with aperture, the 8 was actually 1/8th the light or 3 stops. But if the overall range is 10 stops, then that would be impressive. I guess it still begs to ask, "Why the 8x designation?"
http://www.tiffen.com/tips_ndfilters.html
http://www.tiffen.com/tips_ndfilters.html