This is a record of using the LEICA M mount, Summicron-M 28mm F2ASPH. with a Leica M digital camera.

Table of contents

LEICA SUMMICRON-M 28mm F2 ASPH. Photo Example(with Leica M9P)

Benten-do, Daigoji Temple, Autumn leavesBenten-do, Daigoji Temple, Autumn leavesBenten-do, Daigoji Temple, Autumn leaves
Nanzenji Temple, Autumn leavesNanzenji Temple, Autumn leaveskyoto
Konkai Komyoji TempleKonkai Komyoji TempleKyoto, Autumn Foliage
Kyoto, Autumn FoliageKyoto, Autumn FoliageMt.Fuji

The ELMARIT-M 28mm lens was the first 28mm lens to use an aspherical lens.
I debated whether to buy the 4th generation Elmarit or this one, but at the time the price difference was about 50,000 yen, so I bought the Summicron. Nowadays, the price of the Summicron has gone up so much that it has become a luxury item.

It is indeed a sharp modern lens, and I often used it with the LEICA M9-P and had no major complaints.
The hood that came with the early Zmicron 28mm was made of thick plastic and did not look good. I think the newer screw-on hood is much better looking.
It may be a problem specific to the lens I owned, but it did not have good backlight resistance, and in severe conditions where the sun was in front of the subject, it sometimes produced a ball-shaped flare in the image.

I feel that the Summicron 28mm is a lens in a delicate position, half a stop brighter than the Elmarit, and in the film era, this half stop was worth it (half a stop seems valuable in situations such as dusk at ISO 100), but in the digital era, a half stop difference is unlikely to be a problem when using the lens. However, in the digital age, a half stop difference is unlikely to be a problem when using the camera.
The bokeh effect at maximum aperture is also not dramatically different between F2 and F2.8 at 28mm focal length, so it is difficult to find a motivation to actively select the Zumikron. In terms of operation, the smaller aspherical ELMARIT-M 28mm ASPH. is easier to handle. If I had to choose a Summicron lens, it would be to have all my lenses in the Summicron line, but I think it is human nature not to be able to resist the magic of the Summicron name.

Wide angle lens for LEICA M-type.
Released in 2000, the exterior was renewed in 2016 and the hood was replaced with a screw-in hood.
The lens construction has remained consistently unchanged, and the lens has been highly complete since its release.
It features an aspherical lens and is almost the same size as the 4th generation ELMARIT 28mm that was released earlier. The barrel design is almost the same, but the inside of the lens is very different due to differences in lens elements, and the exterior differs in the aperture ring design and the minimum aperture value is F16 for the ZUMIKRON The exterior of the lens differs in the aperture ring design and the minimum aperture value of F16 for the Summicron.
The hood (12451/12547) is the same for both lenses.
The difference is that the 12547 has only M2.8/28 engraved on the hood, while the 12451 has M2/28 and M2.8/28 double-engraved on the hood.
The 12547 was sold when the Elmarit was released, and later the model number was changed when the Zmicron was released, which uses the same hood.
Lens recognition 6-bit codes can be added to lenses without codes.
Some older lenses have the 6-bit code added depending on the production date, and all lenses after the renewal have the 6-bit code added.

focal length(mm)28.4
Maximum aperture2.8
Minimum aperture16
Lens configuration6groups 9elements
Minimum distance(m)0.7
Lens length(mm)40.8Distance from lens mount flange
Lens max diameter(mm)53
Filter diameter(mm)46

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