Quote Originally Posted by wblynch View Post
It is true. The OM-2sp, OM-4/t and OM-3/t have rougher feeling film advance. I believe this is due to stronger internal gearing intended to stand up to high-speed motor drives.
The Nikon F3 has a very smooth film advance almost like the Leica and yet many was used with the MD-4 which is a 5fps motor drive without any problem. While Olympus did make 5fps drive for the OM series few of these cameras were used with motor drive.