Archived posting to the Leica Users Group, 1996/05/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dr. Volow, I certainly apologize for jumping on your case so strongly earlier but one thing we might forget about "lens tests".....and I think there was a msg earlier from Mr Ed Meyers.....unless you isolate the lens from the camera - put it on an optical bench - you're essentially just shooting a lens chart with a camera and you might as well go shoot real life. Unless, of course, you actually intend to matte and frame those lens charts. The lens - to be a valid test of the lens alone - can't have any outside influence on it such as a camera body and - heaven's sakes - a shutter! Even the camera-to-lens mounting must be considered as flawed or certainly a variable in the equation. Now......if you're not talking a strict lens test but an overall test of the picture-taking device 'en toto', I argue again that you're better off simply doing a side-by-side of cameras and lens combinations and picking the best of the best. Again, I offer, after all of the research and development you've already paid Leica in the price of the goods, it's questionable to question them. They weren't pulling your leg: "Leitz means precision......worldwide." Regards, Tom Hodge Davidson, NC On Mon, 20 May 1996, Michael Volow wrote: > I don't mean to start a religious war over lens tests vs. no lens tests. > I'm no optical authority. I'm sure that an experienced professionel > photographer can tell much more than I about a lens's quality just from > looking at pictures. And perhaps I need lens tests more than another > person does (I don't really do many tests, maybe 2 or 3 every 3 or 4 years). > > But lens tests have helped me find out what a len's limitations are. For > example, I like to shoot wide open in low light without flash. If I find > such shots with a particular lens are fuzzy or soft, I like to know > whether it is camera movement or the len's resolution and contrast wide > open. Sometimes my wishful thinking biases my judgment about its optical > performance. After all, with the correct lighting and composition one can > take beautiful pictures with a bad lens. > > I didn't start this thread, but was simply responding to another list > member's request for interest in lens testing. We might close this thread > here or I could move it to a more relevant *.photo.tech. > > Michael Volow, M.D. (mvolo@acpub.duke.edu) > Department of Psychiatry, Durham VA Medical Center, Durham, NC > 919 286 0411 Ext 6933 > > >