I'm new to the FD-m4/3 adapter or FD lenses for that matter, I purchased this lens on Ebay for a decent price but I'm having trouble with the aperture ring (or I'm doing something wrong). Without the adapter I can't get the aperture ring wide open, in fact it won't go any wider than f8 or so. But with the FD-m4/3 adapter attached to it, it goes wide open but I can't stop it down. I'm glad it's not the other way around but just making sure it's not something I'm doing wrong. Without the adapter attached to it, the aperture ring only opens the iris with the rear lens cap attached (only works from f8 to f22). Without the rear lens cap the aperture ring is not doing anything.
