Originally posted by roy now i've gotten two different answers from two different places. one yes and one no. do i flip a coin????????????
Have a look at
http://kmp.bdimitrov.de/focusing/index.html for information on the transition from K to M eyepieces. My only suggestion is that the all rubber K/Spotmatic eyecups could be "manipulated" onto a M or later body but the fit would be pretty distorted and incredibly tight.
I own both K & M cameras as well as the *istD and can vouch for the difference. However I don't have the eyecup so you never know.
cheers
Greg
www.collectivex.com.au/cssnsw