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I'm looking for a summary of the similarities and differences between Autofocus 1, 2, 3, and 4, and, if I may, Superfocus, 3T, and DIT. I expect someone can point me to an informative link, but if not, I'd be quite grateful for an explanation here.

Best Wishes!

Hope this helps you:

All the systems are here: http://markforster.squarespace.com/tm-systems/

And there's a useful blog category: http://markforster.squarespace.com/blog/category/review-of-systems


(Also, please note that "A1" and so on are sizes of paper sheets, the commonly used abbreviations of the Autofocus systems are AF1, AF2 etc.)