Now that's interesting! That's must be indeed the major mechanical difference comparint both lens types.
Thanks for this feedback! Groeten, VIc Adam Maas schreef: > A lenses have a fully linear aperture actuation. > [...] > A fully linear aperture is necessary for the camera to > be able to accurately set aperture in P and Tv modes. There are a few > cameras which can do that without a linear aperture (the Chinon CP-6 and > Nikon FA are two) but they double check and adjust exposure after the > lens is stopped down. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
