Originally posted by Rondec I think zooms have come farther since the film era than primes have. My guess is that computer modeling is more helpful when you have multiple focal lengths to deal with .
I own a vivitar series 1 70-210/3.5 (version 1). I believe it was one of the first lenses designed using computers, and it still performs well. I agree computer design is one part of the equation, aspherical elements is the other.
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The other thing to mention is that ultra wide angles didn't seem to be very common in the film era. Kerrowdown's 15mm is not exactly cheap on ebay. Certainly getting something that would match the DFA 15-30mm on full frame from the film era would be difficult (even more so for the DA *11-18).
I would agree here as well, when I started with my *istD I shot both film and digital. The *istD came with the FA-J 18-35 just like the last of the film bodies, but on the cropped sensor it just wasn’t wide enough. So I shot film for wide angle, and ultimately scanned the lot, and digital for normal to tele. It wasn’t until I got the sigma 10-20 that I stopped shooting with my PZ1 and went full digital