To give the "M" system even greater versatility in difficult light situations, the popular Leica Summicron-M 28mm f/2.0 Aspherical Lens (6-bit, manual focus) has a focal length with an even faster speed of others in the line of Leica Summicron high speed lenses. By means of a complex optical computation, the use of special types of optical glasses and the inclusion of a lens element with an aspherical surface, it has been possible to create a lens with outstanding performance that is in no way below that of the excellent performance of the Elmarit-M 28 f/2.8. Considering the fact that this lens is one stop faster than the 28 f/2.8, it is remarkable that the designers were able to keep the dimensions and weight of the new lens virtually the same as the old lens. This lens features outstanding image performance across the entire field, high resolving power and brilliance even at maximum aperture.
This lens has been updated with the "6-bit" coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then (optionally) apply a "final stage" software based vignetting correction (for RAW images the lens used is simply recorded, no change is made).
| Filter Size | 46mm |
| f/Stop Range | 2-16 |
| Minimum Focus Distance | 2.3' |
| Magnification | 1:22 |
| Zoom/Focus Control | Not applicable |
| Angle of View | 76 Degrees |
| Groups/Elements | 6/9 |
| Length | 1.6" |
| Maximum Diameter | 2.1" |
| Weight | 0.60 lb |
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Comments about Leica Summicron-M 28mm f/2.0 Lens (6-Bit, Manual Focus):
The optical performance of this lens is excellent. Resolution is great and CA almost completely lacking - at least on the shots I made with the lens so far. Distortion is well controlled. Vignetting is very high.
First copy of the lens was severely front focusing.
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Comments about Leica Summicron-M 28mm f/2.0 Lens (6-Bit, Manual Focus):
I'm a serious amateur photographer and (non-photography) businessman who often photographs all sorts of business and industrial situations. Salary from latter pays for toys from former. There's almost always a camera in my briefcase, and I travel extensively. This is an exceptional wide angle lens, and if you're making the jump to the M9 from a DSLR, a very forgiving lens to (re-)learn manual focus. I went to Leica to get wide aperatures, so it was either this lens or the 35 mm f1.4. It worked for me right out of the box [...]Surprisingly shallow depth-of-field at f2, especially at close-in focus, an effect that I had hoped for and found. Similar depth-of-field to other good wide angle lenses at higher aperatures.On the M9, be aware that the this lens uses the full viewfinder, and unlike most DSLRs (I'll use my Oly E-3 as a reference), the viewfinder effect is similar to attending an IMAX movie and sitting very close to the screen--your eye can't get it all without moving. In practice not a problem, but don't expect to see much beyond the edges of the frame. Another pleasant surprise--a screw-on circular polarizer works, at least in big-blue-sky situations. There is enough fall-off in intensity that the meter picks up the optimum polarizer setting. I have not yet tried other situations. I can confirm the other reviewers comment about the lens hood blocking the lower viewfinder corner. That said, the lens hood also comes off very quickly--it's clean design.
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Comments about Leica Summicron-M 28mm f/2.0 Lens (6-Bit, Manual Focus):
I have used this lens for about 3 weeks now and find it's size/weight to be very conducive for everyday usage. It has the typical sharp leica glow we have come accustomed to. Built is fabulous. I anticipate this will be one of my most favorite lenses to be used on the M9. Only criticism: minor viewfinder blockage with lens hood on. But, both typical and unavoidable for this lens. Highly recommend to any Leica m mount user.
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Comments about Leica Summicron-M 28mm f/2.0 Lens (6-Bit, Manual Focus):
I'm primarily a street shooter. This lens has the focal length and aperture to handle anything that comes along in my chosen window of opportunity.
Smooth focusing, extreme sharpness, snappy contrast, and great color rendition have made this lens my hands down fave.
Not having found any flaws, I'd recommend this great glass to anyone.
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