Markus Maurer wrote on Sat, 31 Mar 2007 13:47:06 -0800: > Hi Jim > I have a second Tamron SP 70-150mm F2.8 in quite good condition but > the soft > focus ring is broken somehow. If I engage the ring the zoom only > produced a > blank exposure with my film cameras. With the ring set to off > position the > lens works fine . I don't know if that can be repaired easily? > The seller did not tell me that and when I noticed it was too late. > If you > are able to fix that fault and would not mind the shipping cost > from Switzerland you could have it for a low price or in exchange > for some > other photographic equipment like Tamron KA adaptall2 adapter. > I have a spare 2x Tamron SP tele converter as well and a manual Pentax > adaptall2 adapter with it.
I'll send you a private email note about this - thanks! > I will make some tests with the Tamron 70-210 SP 3.5/4 zoom + SP 2x > teleconverter on the K10D for bird shots and hope for a usable > Background rendering, the SP 500mm Tamron mirror lens was just not > good in > this regard. I think that you will find the bokeh of the SP 70-210 f3.5-4 to be acceptable. Like you, I have seen bad bokeh with all the mirror lenses I've used. Every OOF bright highlight produces ugly, confused donut bokeh. Sometimes careful composition can minimize it but on the whole I try to avoid mirror lenses for other than astrophotography, where everything is at infinity focus so there is no bokeh to worry about! > Do you have any experience with the Tamron SP 28-80mm 1:3.5-4.2 27A > zoom? > How well it does on the Pentax DSLR at 28mm? I recently got this lens but haven't compared it to my Pentax zooms yet. Now that the weather is getting better I hope to do some long- delayed lens testing soon! Regards, Jim -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
