Archived posting to the Leica Users Group, 1997/01/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I was able to obtain the new 24mm lens and I have shot several rolls of film with it as well as make some comparisons with the 24mm R and 24mm Nikon AF. The lens appears quite sharp in all the prints I have made -- of course I'd say that if only to justify what I paid for it! I haven't processed the slides as yet so no comment on them for the moment. I did a comparison by mounting the cameras on a tripod and focusing on an object at about 12 feet. This was an interior shot and the light was constant. I set the aperture at f5.6 and used a CLE and an M6 with the new lens as well as an R7 with a 24mm R and an N90S with a 24mm AF. All shots at f5.6 with the same roll of film (I rewound the film after shooting with each camera) on a tripod; the CLE, R7, and N90 were shot in Auto mode and the M6 with a cable release. I made prints of each. I used a lens shade for each shot. I did not make comparisons at other f stops; if an f2.8 lens doesn't work well at f5.6, then who cares. I couldn't detect any difference in contrast in any of the negatives. When I printed them filtration and exposure was essntially the same for all four negatives. I used a Focotar 50mm-2 at f8.0 to enlarge the negs. I enlarged full negatives to fill the 10" side of the frame. I basically checked the center and now realize I should have also checked the edges. I enlarged the prints to 8x10 and they were all very sharp visually from center to edge. Again, I may be trying to justify the cost but the CLE and M6 shots appeared slightly sharper when I tried to read the writing on the spine of a OE dictionary that was near the center of the print at 12 feet. The R7 24mm was almost as good but there was a perceptible difference in the N90-24mmAF which just wasn't quite as sharp. All this isn't very scientific but while I would tend to rate the new M version at a 10, the R7 version was probably 9.7 and the N90-24AF would be 9.5. All the prints looked very good and it is only when you compare them by looking for smallest detail that is sharp that the difference can be seen. I am happy to note that the lens appears to meter successfully with the CLE, i.e., the automatic mode works well. Hope this make some contribution and I would like to hear the results that others have had. Ed Kowaleski