Hi Derby yes, that's the lens. I will test it today as Mike suggested and do some more flower shots. Gladly all the photos I lost can be made again easily. I won another example of that lens at an auction for a very good price. Despite the heavy weight I really start liking it for a fast "walk around lens kit" together with the Pentax A24mm.
greetings Markus >>-----Original Message----- >>From: Derby Chang [mailto:[EMAIL PROTECTED] >>Sent: Saturday, May 06, 2006 6:43 PM >>To: [email protected] >>Subject: Re: OT:Tamron Soft focus problem >> >> >> >>Hi Markus, >> >>I'm really sorry to hear that. >> >>This is your lens, right? >>http://jfcampbell.us/photo/tamron70-150sf.htm >> >>The Pentax lenses are really simple, with no open aperture lever - it >>just stops down to whatever f-stop you select. The smaller the aperture, >>the darker your viewfinder (and of course less soft focus). It sounds >>like the Tamron uses a floating element ("shifting the relay lens") to >>adjust the spherical aberration. Hard to think of a reason why that >>would affect exposure though. Keep us informed about the prognosis. >> >>Haven't had a chance to use the 6x7 120mm yet, but I will soon. >> >>D
