Robert Hughes
9-Mar-2007, 13:22
... on a working Graphex shutter made by Wollensak. I take it this is a Wollensak built lens? Or is it a rebadged Ektar 101mm? Does anyone here have experience with this lens?
It's got what looks like a first generation single coating on the elements. It has what look like black dust spots on some of the inner lens surfaces. I unscrewed the front & back elements and cleaned them all, but some of the spots remain. I don't think the spots are mold, so I'm not too concerned. Old lube, perhaps? (Some shutter leaves have evidence of grease). Can the spots be removed without damaging the coatings?
I'm favorably impressed with the lens' performance at f/16; the expected slight darkening, defocus and softening at the corners, but not a lot of distortion. Haven't tried it wide F***** open yet, but I can guess it'll be blurrier. In the center it looks as clear as my standard issue Raptar 135mm. No Gold Dots Here - you can see I'm not much of a lens connoisseur, but heck they work & they're here.
It's got what looks like a first generation single coating on the elements. It has what look like black dust spots on some of the inner lens surfaces. I unscrewed the front & back elements and cleaned them all, but some of the spots remain. I don't think the spots are mold, so I'm not too concerned. Old lube, perhaps? (Some shutter leaves have evidence of grease). Can the spots be removed without damaging the coatings?
I'm favorably impressed with the lens' performance at f/16; the expected slight darkening, defocus and softening at the corners, but not a lot of distortion. Haven't tried it wide F***** open yet, but I can guess it'll be blurrier. In the center it looks as clear as my standard issue Raptar 135mm. No Gold Dots Here - you can see I'm not much of a lens connoisseur, but heck they work & they're here.