Originally Posted by ToddB
I cannot recall the number of times when I shot a decent photo simply because I HAD a camera with me. My MF kits are simply too bulky to take everywhere, and I have a constant process of negotiation to take the extra kit along on family trips etc. So, if you haven't got other 35 mm gear then having a simple set will be very useful indeed.
If you are concerned about quality, then be frank about what quality you expect. There are horses for courses, but I have seen rather beautiful prints from "ordinary" 35 mm, 16" x 20" and sometimes even larger. I print only up to 12" x 16", as my darkroom setup is not conducive to larger prints, but I have no fear of enlarging a 35 mm negative to that size. Using Acros, I still see very little grain on that size print. TriX prints show grain, but the sharpness and texture compensates for it. I know that Michael Crouser makes prints beyond 40" in size from 35mm TriX; AFAIK he uses an F4. If you never need autofocus or long telephoto lenses, and have barn-sized storage available when travelling, then you probably won't see the need for 35 mm gear. I think many if not most of us (here in MF forum) though can be described as multi-format shooters where multi usually means 35 mm and 120/220. There are some who use MF as their "small" kit , and some who use rangefinders like the Fuji or Mamiya 6/7 for travelling light. But the cost of those options is in a different league to a used 35 mm with a few old lenses, and they still do not overcome the focus and tele issues. I think Narsuitus's list covers most, and I concur. But we all differ in how we operate, what we like most, and whether we do something as easily as possible, or rather for the hell of it.
My advice in a nutshell: Stick with the F4 for a while and see whether you like it or not. It may give you options you didn't think you'd need, and at it will take nothing away from what you can do with MF gear. There are also lenses for 35 mm systems, the equivalents of which sometimes do not exist for the larger formats (the converse also being true!). Try to print a few negatives, if you do darkroom. From my experience, jumping between systems is not a problem, as long as you know each of them well. You have to have confidence in your gear, no matter what gear it is.