52mm Drop-in Gelatin Filter Holder 52WII
These glass-backed holders accept up to three commercially available cut-to-size gelatin filters for rear-insertion lenses. For the EF 300mm f/2.8L IS II USM Lens and EF 400mm f/2.8L IS II USM Lens.
Offer valid October 26, 2014 12:00 a.m. through December 31, 2014 11:59 p.m. ET. Offer valid in U.S.A. only, and void where prohibited, taxed or restricted. Availability of certain items may be limited. Limit of ten of any one item per order, subject to availability. Order will be shipped to a street address in the 50 United States or the District of Columbia only. Dealers, distributors and other resellers are not eligible for this offer. Offer subject to Canon Online Store Terms of Sale.