Archived posting to the Leica Users Group, 1998/02/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 01:53 AM 11-02-98 EST, Marvin reponded to: > In a message dated 98-02-11 00:35:19 EST, Jim wrote: ><< > IMHO, I don't believe you can effectively test cameras or lenses with print > film. You should be using slow sharp film, preferably a chrome film, and > look at the results on a light table with a GOOD loupe. But, in your case, > if all you shoot is print film, then you only have to satisfy yourself. > Jim ================================================= > >> > That is very true - Irwin has already illustrated my point that films other >than > the high resolultion chromes and those B&W under 100ASA have the very > neccessary resolution to differentiate the slight differences between the >high > quality lenses. Since your eye will adjust to thinking that something is >sharp > & crisp when it really isn't, I personally will use a 25ASA Chrome & project > them side by side, as I find the use of a loupe & light table a little >awkward. I guess if you never use 25 iso film and light tables and GOOD loupes, then what is the point to testing lenses? Dan C.