Dear list members, Last weekend, I was shooting in the mountains. And when I got back and checked my slides, I found something very strange:
It seems that most (or all) of the photos that I shot with my Sigma 2.8/70-200 have a significant loss of sharpness in the right third of the slide. Left and middle are tack sharp. As far as I have checked my slides, I can say that all (or most of them) slides that have been taken at 200m, focus to infinity (f-stop 4 or more) show this - whether using a tripod or shooting freehand. Photos taken a short distances, portraits etc. seem to be ok. I also used a Sigma 17-35, and these photos didn�t show this sharpness problem. But I mostly shot at f11 or more. So this might be no good comparison. Now, I would like to know if anybody ever heard of such a "behaviour"? Is this a lens problem? Or might it be caused by the film not being exactly "parallel"? I�m using a EOS 1V as body. This weekend I will do some comparisons with my old EOS 5 and Canon 70-210USM to see where the problem is. Anyway, I would appreciate any hint. Ah, what I forgot to say: The Sigma 2.8/70-200 fell down some months ago and has been repaired - Sigma Germany told me that only the zoom ring was blocked... Thanks in advance, Marco ------------------------------------------------- Marco Kost Journalist - Bild und Text Otto-Mair-Ring 5 83607 Holzkirchen Tel.: 08024 / 47 41 55 Mobil: 0179 / 118 9113 Website: www.mountains-and-more.de Email: [EMAIL PROTECTED] ------------------------------------------------- * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
