Archived posting to the Leica Users Group, 1999/11/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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] 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.