Ricoh GXR: M-Mount Unit with Voigtländer 15mm
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Preparations for the Unit | Body with Lens Attached | Some Technical Data | Sample Images | Conclusions | Links
After Ricoh's official announcement of the M-mount expansion unit, I decided to buy one, although I had not intended to do so originally. Here are my first personal experiences with the lenses that I bought (or tried to buy). This page is devoted to the Voigtländer Super Wide Heliar f4.5/15mm lens.
Preparations for the M-Mount Unit
In preparation of the M-mount expansion unit, I bought one lens and auctioned a second one in August 2011, a Voigtländer Super Wide Heliar f4.5/15mm, and a Leitz Elmar-C f4/90mm. Both were meant to extend the range of my two A12 units at the wide and tele ends.
First, I bought the Voigtländer Super Wide Heliar f4.5/15mm, which is manufactured by Cosina and equivalent to a 22.5mm wide angle lens on the GXR. Note that is has an in-built sun shade.
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Photos: Voigtländer Super Wide Heliar f4.5/15mm (22.5mm equiv.)
Body with Lens Attached
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Photo: Body with A12 M-mount expansion unit attached and Voigtländer Super Wide-Heliar f4.5/15mm lens
Some Technical Data
| Focal length | 15mm (22.5mm equiv.) |
| Angle of view (35mm film) | 110° diagonal |
| Maximum aperture | 4.5 |
| f-stop range | 4.5-22 |
| Number of iris blades | 10 |
| Number of lenses/groups | 8/6 |
| Shortest distance | 0.5m |
| Weight | 156g |
| Length | 38.2mm |
| Maximum diameter | 59.4mm |
| Filter thread | 52mm |
| Lens hood | integrated |
Sample Images
Here are a first few samples taken with the Voigtländer Super Wide Heliar f4.5/15mm lens:
Conclusions
Disclaimer: I am not a lens expert who sees marked differences between various Leica and/or other lenses. I can check for soft corners, find differences in color rendition, and, in rare cases, may discover a "3D look", but that's all. Please regard therefore my conclusions as the verdict of a "layman".
It is still too early for me to draw any real conclusions, and I have to admit that I use this lens rarely. Manual focusing is not a big issue with this lens because of the huge depth-of-field. Corner sharpness seems to be OK for such a wide lens.
All in all, the results that the Voigtländer Super Wide Heliar f4.5/15mm lens produces on the M-mount unit are very pleasing, but you need suitable motives for this lens...
Links
- Voigtländer Super Wide Heliar f4.5/15mm (English): www.voigtlaender.de/cms/voigtlaender/voigtlaender_cms.nsf/id/pa_asan6m4dwb.html
- Voigtländer Super Wide Heliar f4.5/15mm (German): www.voigtlaender.de/cms/voigtlaender/voigtlaender_cms.nsf/id/pa_asan6lwmfj.html
- Voigtländer Super Wide Heliar f4.5/15mm at Ken Rockwell "Leica Lens Reviews" (currently the first in the list): www.kenrockwell.com/leica/lens-reviews.htm#15 • full review: www.kenrockwell.com/voigtlander/15mm-m.htm
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made by  on a mac! |
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| 06.04.2013 |
