Quote Originally Posted by nambun View Post

The F4 is the world's first professional camera with a built-in motor drive.
The F4 is the world's first professional camera with modern Matrix (intelligent) light metering.

by Ken.

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In my opinion, you can choise F4 (without F4s, F4e because its heavy) is the best for AI/AIS.
Not to be argumentative or anything Ken but both the above features were out in the Canon T90 before the F4 was released..

My vote though was for the F4. I have both the F3HP and F4. Both are nice cameras but the F4 is an amazing beast. I do though think I prefer my T90s over the F3 or F4 but a lot of that could be due to all the years I spent using those T90s.