For this reason, many M-shooters enjoy it, although thereĪre some who say the cam on the M-Rokkor has a different cam angleįor M cameras. The classic Leica qualities of smooth focus, high resolution, and gentleĬontrast. The M-Rokkor is very sharp, very compact, and exudes Usually it is the other way around - many Leica R lenses Only lens sold by a Japanese company (Minolta) that was actually M-Rokkor 90mm f/4: This lens is unique in that it's the When I need a lighter choice, I use the M-Rokkor 90mm f/4 below, which is only 270g. IV aspheric is 500 g and the previous chrome ones are much heavier (around 685g). III) is actually the lightest 90mm Summicron at 410g, the Mk. It's nice and compact, although the solid metal construction means it is also pretty hefty. The non-ASPH design gives a very nice out-of-focus background ('bokeh') while the center is more than sharp enough for me. The quality of the Leitz Summicron 90mm f/2 is beyond reproach. It's the third generation (pre-ASPH), made in Canada.

I bought this lens as my main long lens for my M7. Around the 1960s, manufacturers introduced a fourth negative element at the rear, creating the tele-focus design, allowing the lenses to be more compact. Most of the early lenses are simple triplets (like the Elmar) and give good performance. Long lenses are much easier to design than wide angle lenses. If you have an M-series camera, all you need is a M-to-screw bayonet adapter, which go for between $50-100. Or, old Canon Serenar or even Nikon lenses (90, 100, 105, 135) are available for reasonable prices. You can pick up an old Leitz 90mm f/4 Elmar for around a $100 fairly easily. In Leica screwmount (M39) are rather inexpensive and available from a variety of sources.

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