Comments about Hoya Hoya 77mm Close-Up Filter Set (+1 +2 +4 Diopters):
We are using this with our Nikon D200 and and Ikelite port to decrease distortion for underwater photography. Pretty cool!
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Comments about Hoya Hoya 77mm Close-Up Filter Set (+1 +2 +4 Diopters):
Oops, should have put my comments here. Shooting underwater photos with Nikon D-200 and a 10 to 20 Sigma zoom through a dome port. Edges were soft so added the +2 diopter. The NEF 16 meg shots are now sharp edge to edge.