I just bought my first 4X5 (Linhof III) with a 90mm SA and have a couple questio ns (I have not even tried it yet). I need mine to be fairly light, so I was thi nking of loosing the SA and getting a Kodak Widefield Ektar 100. Would there be much difference in optical quality (I have heard the Kodak is very, very good). The Kodak is about 1/3 the size! Also how much can you stop the SA down befor e the diffraction gets so bad you just can't live with it (printing say to 16x 2 0). I know Ansel sometimes shot at f/64, but that was B&W. If I do this with c olor, would it be a waste? (need lots of D of F). Thanks
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