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Re: New ISO 12233 Chart for the new Sigma 50-500 mm APO DG OS HSM Lens?
Thank Bryan.
I find your way of providing the comparison of the ISO charts innovative and very useful - it is the best as far as I concern to actual compare optical quality of lenses. Lens optical quality in practice are relative. E.g. I am evaluating the new Sigma 50-500mm and I want to find out how does it compare to the Nikon and Canon closest equivalents, and Sigma
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