Using a template in PTGui gives very good stitches.
Resolution is complex. In what direction? At what contrast? And so on. For instance, my Cezanne has higher resolution in one direction than in the other. I don't have the time or inclination to run tests to counter every conceivable objection.
The results of my dslr BW scans are significantly better that I achieved with a consumer flatbed, and I spent a lot of time optimizing those flatbed scans. The dslr scans are almost as good as I can do on my Cezanne. The limitation is my D600. Daniel got over 5000 dpi results with a D7000, Rodenstock Magnagon and a high res target. The targets are available. Interested parties can buy one and test their own scanner. What do you get when you set the scan size to 4x5"?
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