Archived posting to the Leica Users Group, 1999/11/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This is interesting. Should have read the message more closely, but then again i think there are probably 5 people that actually read my posts anyway. When I hear ASPH, I typically think of the 35mm ASPH lens. It would appear that in 35mm focal length the Asph is not as good as the non-Asph. But in the 75mm to 90mm range the If we compare the 75-85mm ranges they would be as follows: Leica Summilux-M 75mm F1.4 f1,4 0,61, f2 0,73, f2,8 0,81, f4 0,84, f8 0,86 Leica Summicron-M 90mm F2 f2 0,71, f2,8 0,78, f4 0,84, f8 0,85 Leica Elmarit-R 90mm F2.8 f2,8 0,81, f4 0,86, f8 0,86 Leica Elmarit-M 90mm F.28 f2,8 0,81, f4 0,85, f8 0,86 Contax G 90mm F2.8 f2,8 0,81, f4 0,84, f8 0,85 Nikon 85mm F1.4 f1,4 0,62, f2 0,72, f2,8 0,79, f4 0,84, f8 0,86 Canon 85mm F1.2 f1,2 0,61, f1,4 0,66, f2 0,76, f2,8 0,83, f4 0,86, f8 0,87 Looks like your Summilux is the champ, better than the Nikon 85mm F1.4 but not as good as my Canon 85mm F1.2 wide open. Peter K - -----Original Message----- From: Kotsinadelis, Peter (Peter) Sent: Thursday, November 18, 1999 3:39 PM To: 'leica-users@mejac.palo-alto.ca.us' Subject: RE: [Leica] 80mm Summilux-R BD, I find your comments interesting. If we use MTF tests as supplied by PHOTODO (they use Hasselblad MTF equipment, which I would assume would make for a somewhat scientific test) the Leica lenses rate as follows: Lens Rating Resolution at F-Stops Leica Elmarit-M F2.8 4.1 f2,8 0,78 f4 0,81 f8 0,82 Leica Summicron-R 35mm F2 3.8 f2 0,68 f2,8 0,75 f4 0,78 f8 0,80 Leica Summicron-M 35mm F2 4.0 f2 0,69 f2,8 0,78 f4 0,80 f8 0,83 Leica Summilux-M Asp 35mm F1.4 3.8 f1,4 0,54 f2 0,65 f2,8 0,75 f4 0,75 f8 0,83 It would appear that the Summicron-M F2 lens set at F8 will resolve equally as well as the Summilux-M Asph, and surprisingly better at F2.8 and F4. I was surprised to see this. So if you don't need the fast speed, you can strill have the resolution of the more expensive lens. Peter K -----Original Message----- From: B. D. Colen [ mailto:bdcolen@earthlink.net <mailto:bdcolen@earthlink.net> ] Sent: Thursday, November 18, 1999 5:50 AM To: leica-users@mejac.palo-alto.ca.us Subject: RE: [Leica] 80mm Summilux-R Is this also the case with the 75mm Summilux-M ? Cheers, Paul. Absolutely not. The biggest complain about the Summilux M might be that it's too damn sharp, and reveals ever past and present defect in a subject's face. Also that it has virtually no depth of field at all at 1.4. It is a really stunning lens, even if it isn't ASPH, and even if it is big by M standards...of course, compare it to the Nikon 85 1.4, to which it is very similar in terms of sharpness, bokah, and depth of field, and the Nikon takes a 72 filter - which is to say, a dinner plate..much bigger than the Leica 75, although the 75 is longer than the Nikon...But forget the size and shoot away - if you're looking for a short-tele, fast lens, the 75 M is it... B. D.