Originally Posted by
GG12
Both yes and no. At first look, the older lenses are quite fine with a digital back. I got a stitching back and put it on a 4x5 camera with a couple nice analog lenses, and the images were just fine. Ahah, (I thought) they were messing with us, these older lenses (58, 90) are just fine. And on center, they were.
The problem was at the edges - and especially with stitching and moving the smaller digital back around. With modest shifts, say 5mm, they were fine, but at about 15mm shift, or say (if you do the math) at the edge of a 60-80mm lens circle, they began to not look so nice. A bit of distortion, a bit of smearing, and when looked at critically, they just weren't there. Some of the later "analog" lenses, like the 47XL, still work well with digital, but one generation older and there are real limits to working with them. Its not just marketing.
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