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.
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.