If you don't mind the size and weight, this LEICA APO-SUMMICRON-M 90mm f/2 ASPH is the best telephoto lens ever made. If most of your shooting is at f/2, f/2.8 and f/4, this is the best 90mm lens to get.

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  Fantastic anyplace you need a medium tele lens, and don't mind the extra size (55mm filters) and weight (475g total) compared to slower 90mm lenses.

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  Anyone demanding the smallest, lightest lens. For this, use the 90mm f/2.8 TELE-ELMARIT-M (1974-1990, 39mm filters, 225g and about $400 used) or today's newest LEICA MACRO-ELMAR-M 90mm f/4 (39mm filters, 223g and about $2,000 new).

I finally returned to Havana to conduct a workshop for a few aspiring professional photographers. I took the 90 Summicron along to see how I managed my Leica set-up and the weight the system management I'll have when I'm working.

I got this lens at Ebay USA for 500 USD !!!! The bargain of my life ! Before this one, I used the M 2.8/90, which is also excellent and a little bit more lightweight. I sold this lens after aquiring the Apo 2/90. This lens is simply outstanding. Crisp, sharp, bright and not too heavy.

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  Mechanics, perfect optics from f/2 on !

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  None. The lens is worth every penny (according to the official price)!

The lens is great, but almost impossible to use unless you buy the magnifier for the viewfinder.With a rangefinder camera, you're not looking through the lens when you focus. This lens is the next to longest you can use.

I purchased this lens two weeks ago. Last year I began shooting a M240. The lens is superb, well made and lives up to the reputation. Though I haven't used it in any working situations, I shoot documentary work for NGO's, I have "played" with the lens sufficiently to learn how to focus, which...

My best piece of glass for portrait. Also very good on Sony A7x via Novoflex Nex-Lem adapter. Perfect quality lens, super sharp, true gem. German precision - like the best swiss watch movement.

I've had the pleasure of owning and borrowing some of the greatest short teles over the years such as the Zeiss Jena Sonnar 85/2, the Contax Zeiss 85/1.4 C/Y, the various RF Nikkors (85/2, 85/1.5), the Nikkor 85/2 AI, AF Nikkor 85mm f/1.4D IF, the EF 85/1.8 & 85/1.2, the Leitz Summarex 85/1.5 and...

This is a wonderful lens...but my 90mm f/2.8 Elmarit is as good or better with definitely better bokeh....although the extra stop is worth having when you need it... And the admittedly very expensive Pentax 85mm f/1.4 FA* AF is better for real world IQ. Would I sell it? No...

This is an amazing lens and I'm surprised so little is written of it. It has a beautiful glow when opened up along with sharpness. It's a lifetime lens worth owning and keeping like a family heirloom. I love it on my M5 and M9. It' is not heavy by SLR standards.

I think this is probably the best lens I've ever owned having been photographing for 27 years with many different types of cameras. This is a jewel that I'll always have. People say "heavy" but compared to an SLR lens it's not heavy.