SUMMICRON-R 1:2/50
ライカR用標準レンズ、SUMMICRON-R 50mm F2をデジタルカメラで使用した記録である。
Table of contents
Gallery
Sample photo by CANON EOS-1DsMKIII
Impression
As for the 50mm focal length lenses called “standard lenses,” LEICA’s SUMMILUX series are very popular, so the R-type SUMMICRON in particular is in the shade. The lens used for this introduction is a new type ROM-type lens.
I have bought and sold this lens about three times, but recently I have been using it occasionally for the following reasons.
When used with manual focus on a single-lens reflex camera (especially with the CANON EOS viewfinder), comparing the yield of focus at the maximum aperture of f/2 and f/1.4 of the SUMMILUX, I find that the SUMMICRON has a better yield and does not miss focus (when used with the EVF). (I have no concerns about focusing accuracy even with SUMMILUX.) While some may consider using the SUMMILUX with a wide aperture, I prefer to use the brightest lenses with a wide aperture.
The lens barrel is 16mm shorter and more compact than the SUMMILUX, and when mounted on an EOS-1 series camera with an integrated vertical grip, it fits easily into a camera bag, which is also an advantage.
This lens can be used with the EOS-1DsMKIII without any problems.
Lens specification
The SUMMICRON 50mm has two types of lens barrels: an older model with a separate hood and a newer model with a built-in hood.
The old model includes 1-CAM, 2-CAM, and 3-CAM, and some of them may have been converted to ROM, but I have never seen them. Newer types include 3-CAM, R-CAM, and ROM-CAM.
| Item | Value | note |
| focal length(mm) | 52.5 | |
| Maximum aperture | 2 | |
| Minimum aperture | 16 | |
| Lens configuration | 4groups 6elements | Gauss-type |
| Minimum distance(m) | 0.5 | |
| Lens length(mm) | 42.8 | |
| Lens max diameter(mm) | 64 | |
| Filter diameter(mm) | 55 | |
| Weight(g) | 290 |
Reference links
広告
