I just received a mint F6 from KEH. It was rated (only?) "Ex+" but the darned thing looks and smells new. No body cap, box, manual or strap, though. Those are the only 'flaws.'
I love KEH....
Anyway, this comes a week after i got an F100. I had owned an F100 two or so years ago, and really liked it, but sold it when i acquired an F4, because i wanted to try the waistlevel finder with AF lenses for 'sneaky' travel/street shooting. That experiment never went anywhere....
So, i get the F100, and i'm happy again. But, on the way out of the store, i see an F6 on the shelf, and like an idiot, asked to take a look at it. Well, that was it. I took the F100 home, but immediately started looking for an F6 at a decent price.
The thing is, the F100 is magnificent. But, the F6 is still a (big) notch above. The 6's viewfinder is nicer, and that's probably the most important thing for me. I have an FE2 that i love because the view is just so glorious. The F100 is a step down from that. The F6 isn't as large, but it's better than the F100 and it seems a bit more 'forward' than the F100's while still being larger. I can't explain that kind of thing, but those are my thoughts.
I'm not going to compare AF speeds because i only have one AF lens, and at a certain point, they're all fast enough. The F4's AF was fast enough for me. I don't shoot in servo/tracking modes. I shoot stationary people/things. And i plan to use this primarily with an old manual 50mm lens, so....
The shutter and motor are the second significant upgrade with the F6. When i was playing with the F100 over the last week, i was impressed. It's a beautiful thing. Not quite as beautiful as the F80 or a Contax, but it's up there. When i received the F6 today, and then compared the two, i was struck by how refined the F6 sounds. It's not a drastic difference, and it certainly makes no difference in the results or use, but the F6 just feels like it's a bit more elegant. Comparing the construction of the two: The F100 is rated "A" and the F6 is an A+.
Is it "worth" an $800+ price difference. I can't say that it is. It's a smaller difference than between an M7 and an Ikon, design and build-wise. But, sometimes it's the little differences that make the most impact. For me, it's the viewfinder, primarily. If the F100 had the F6's viewfinder, i'd keep the F100. I really don't need/use any special 'features.' It's just about how it feels to use the thing and the confidence and inspiration that the F6 provides. At least, those are my thoughts today....