Hi all, a question aimed at the Tokina 28-105/3.5-4.5 but related to any lens. I ran some tests this weekend involving the lenses I own covering 100mm F.L. and found out this lens seems to be much shorter than 105mm at the long end. I have a TIPA test covering all the 28-105 available a couple of years ago and the actual F.L. measured for the Tokina was 102mm or so. In my tests it seemed much closer to the short end of my 70-210 and not even close to the framing offered by the FA 100 macro which I think should be quite accurate. The tests were not performed with focus to infinity but to a consistent distance of about 1.2 mt/4 feet.
I still have to see the slides but the different seemed apparent even through the viewfinder. What is your experience in the matter? I've been looking around for 28-105s because I felt 70/80 mm to be too short for my needs, if this is the actual F.L. of my zoom I think I'll dump it and get a Pentax 28-70/4 as I'm getting annoyed with the poor performance of this lens WRT flare control and contrast. TIA, Flavio - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
