Aurora Aperture - Power XND Filter ( 77mm )
1) It is the most powerful variable neutral density filter
2) it's an extended range from ND16 - 2000
3) 11 Stops of light reduction !! WOW !!
4) Slim Filter Frame @ 5.5mm to achieve near 0 vignette
5) It's half the heigh of other branded ND filters
6) Best optical quality with 6 elements and 2 groups
7) Multiple layers of nano coating applied for anti-reflection and protect filter from dust , water , oil and soil contaminations
8) built from Aerospace grade aluminium
9) available in these size of 37mm, 39mm, 40.5mm, 43mm, 46mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm, 86mm, 95mm, and 105mm.