Archived posting to the Leica Users Group, 2000/02/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Several conditions could apply here. If the lens was shot at f2-f2.8 a moderate degree of fall-off may be visable. It should NOT be VERY noticable. It seems unlikely that the lens is defective if the resolution at full aperture and focusing is ok. One alternative could be shutter tapering. If your shutter is not firing evenly you could have fall-off on the right side. This all said, you really need to shoot against an even surface to judge fall-off. The sky can be a bit deceiving and is not the best basis for testing. Make sure to find a situation that allows you to shoot at the widest apertures AND get to 1/1000th sec. Turn the camera upside down for a couple of shots, puting on a different lens. If the fall off continues, but switches sides on the upright photo you know it is the shutter. Hope this baffling description helps. I lived through shutter tapering and was all the better for it:) Best wishes Dan States > >I recently bought a 35mm summicron (early '80s vintage) that I'm using on >an M6 (non-TTL). I've fired off about four rolls and some shots >(particularly on color negative shot at dusk) reveal some very noticeable >vignetting. Does this indicate an element problem? I was shooting without a >shade, toward the axis of the already set sun. Vignetting was more >noticeable on one side (away from the axis) than the other. Appreciate any >help on this. >Lee Bacchus. > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com