> Before I spend a good bit of money, how much better is > the K105/2.8 than the M100/2.8? > I'm most interested in bokeh and wide open performance. > The size doesn't matter. ;-)
I never used an M 100/2.8 - sorry. I did once own a K 105/2.8, but put it on eBay after a week or two. http://www.cetussoft.com/pentax/k105f28/ Fred

