sweet spot is what is in focus.. .. when using a 50mm in reversed .. you have like only a few mm of movement or you loose your focus...
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Cheers
Leisa
Nikon D80 | Sigma 50-500mm EX DG HSM | Sigma APO 70-300 | Sigma 50mm macro | Nikon 50mm 1.8 | Nikkor 18-70mm | Lensbaby 2.0 | SB-800 Speedlight | Black Macbook C2D
Little pixels from my world . Flickr
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