B&H has the Hoya 72mm NDx400 filter for $44.95 (reg. $75) with free shipping. There is a limited supply at this price. This is a 9-stop ND filter. Check it out here at B&H Photo.
B&H has Hoya’s 77mm neutral density (ND) 2.7 filter with HMC coating for $49 (reg. $77). This is a 9-stop ND filter. Check it out here at B&H Photo.
One of the shortcomings of such a wide-angle lens is the ability to add traditional filters to them. The protruding front lens elements and fixed petal-shaped hoods make it impossible.
Fotodiox has solved this problem with its new WonderPana FreeArc filter system for the Nikon wide- and super-wide lenses. The FreeArc can also handle graduated ND filters with the square filter attachment.
Check out the promo video below for a rundown on how the system works. [Read more...]