You can use all Exakta lenses on a RTL 1000, but not vice versa, unless you are prepared to put up with a few difficulties - which is more or less the POINT of using one in the first place! :-) I've put film through mine, I would say it was a nice camera to work with, at least when it was new, but of course it was dated even back then compared to the Canon F1 I was using back in the early 1970's.......