Hi! > That never occurred to me until you mentioned it, that could have some > serious consequences. I'm not to bothered by the M & A zooms, I only have > four M 24-35, M 35-70, A 35-105 and A 70-210. But if the Sigma 70-200/2.8 EX > doesn't communicate the correct information it's going to be a right PITA, > same goes for the Tamron 28-75 XR Di to a lesser extent. I'd be left with FA > 28-105 power zoom and FA 80-320 zoom. What about using rear converters? Like > the F 1.7x and the Sigma EX converters.
John, I have *istD and Tamron 28-75/2.8 you mentioned. Though of course *istD has no anti shake, but still, all my PEFs display correct focal length in their EXIF information. This leads me to believe that Tamron is fine. It is worth mentioning that FA 28-105 IF (the first version) was a co-production between Tamron and Pentax. I think that at the time Tamron learned all the necessary protocols for proper Pentax integration. Boris -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
