Re: Reasonable price for A* 1.8 135mm

[P�l Jensen]

Paul: > Unrecorded PDML contributor, who had run his own tests: "A* 135/1.8: F:1.8: > Not particularly sharp. Slight light fall-off at the corners. F: 2.8: > Strange results. Left part of the image unsharp; right side sharp. Don't > know what happened here. F:4: Sharp. F:5.6: Very sharp. F:8: Extremely > detailed razor sharp image. Theres a visible increase in image quality from > wide open to F:8." That was me during a shootout with the FA645 120/4 Macro. What happened there must have been some film flatness problem; its sharp at F:2.8. My theory is that as this was the second frame, and the fact that the film had been in the camera a long time, the exposed frame (F:2.8) was on the piece of film that was immediately out of the casette where it is slightly bent. If the film stay in the camera a long time then the area of the film may "remember" this bend. > Paal Jensen: "The A* lens yields sharp pictures wide open." (Maybe Paal > can reconcile his two positions.) Nope! I maintain that the lens is not that sharp wide open. However, its sharper than any other 1,something lens I've usedwide open. Sharper than the 43/1.9, 77/1.8, FA 85/1.4, wide open. Of course, sharp is in the eye of the beholder but I can see why some would consider this sharp. Regardless of definition and nit-picking; my 135/1.8 is visible less sharp wide-open than stopped down P�l - 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 .