Canon RF 16mm f2.8 STM format_127 The Nikon DK-2 is a

The Nikon DK-2 is a rubber eyecup for many Nikon cameras with 21mm viewfinder threads (like the F3HP and F4)

It has a 7

Front element has a few small coating marks which will not affect imaging

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Canon RF 16mm f2.8 STM format_127 The Nikon DK-2 is aThe Canon RF 16mm f2. 8 STM is a remarkably small full frame ultrawide lens, no larger than a standard 50mm lens but with a much, much wider field of view and a very respectable f2. 8 aperture. In excellent condition, with clean glass and only very minor cosmetic wear.