I use the 65 and 105 on mine the most. Love those lenses.
Changing lenses, I often forget to switch the parallax indicator on the left side to the new focal length.
I like the prism or porrofinder for tripod use only.
Edit: Late on the comment about parallax; had intended to post it earlier...but 2F, the c330's indicator will show with any lens you have mounted, but won't be accurate unless you turn the ring on the left-hand side to the appropriate focal length setting. (it's the rim surrounding the lock/unlock dial for lens changing...) I'm sure the often-referenced Mamiya site and manuals can show exact details.
The C220 uses etched lines on the groundglass to indicate parallax, so no such worries there, but also no great accuracy.
Originally Posted by 2F/2F
The C220 doesn't have a parallax indicator (unless you count the additional stationary line on the screen).
I don't know about the C33.
The C33 does. Perhaps I always missed the knob for FL. I usually use the Paramender, so that would make sense that I missed it.
Originally Posted by MattKing
The C220 (the one that I have, at leas) has etched lines that I use, but not a moving bar like the C33. You look at the focusing scale to see the recommended bellows exposure compensation, and then use the etched lines that correspond with certain amounts of EC.
P.S. Just checked the C33. It is there...and now I remember it. I forgot about it, as I have used the C220 as of late, and have only really used the 80 on the C33. I generally have left the 80 on the C33 and put other FLs on the C220.
I have a C33 and as 2F/2F writes it has the moving parallax indicator, it's built of solid metal and much heavier than than my C330F , it won't accept interchangeable focusing screens.