Originally posted by 71Matador250 I was looking for knowlege on using the Tamron SP 500mm f. 8 on a k10D. I have the KA mounts for my other Adaptall II lensesso mounting isn't an issue. My chief question is metering in spot mode and any problems I might encounter. I am aware of the bokeh issue with mirror lenses, many years ago I had one for my ME Super and with the features available to treat backgrounds in post process, I believe it could be a handy lightweight hiking lens with a medium weight tripod and release. It also might be handy for fireworks.
Thanks Everyone!
The simplest and most accurate way to check out the metering is to try it. Obviously, it won't go into matrix, but try it in both center weighted and spot. I have usually found center weighted metering a la Pentax (some bottom weight as well) to be quite good in landscape mode, but one must be careful in portrait mode, as you get some left or right metering emphasis.