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Test procedure :
- Tripod and RAW
- ISO 200 on both camera
- Same speed at each aperture
- Focus done in liveview with maximum magnification.
- JPG from Camera RAW
- Temperature : Daylight
- Sharpening : 0
- Noise reduction : 0
- No other correction.
- Downsize of the A7r picture to the M size for a fair comparison. (Downsize image in bicubic smooth mode)
Here is the picture with the crop position :
Leica APO-Telyt-R f3.4 - CROP01:
Leica APO-Telyt-R f3.4 - CROP02:
Leica APO-Telyt-R f5.6 - CROP01:
Leica APO-Telyt-R f5.6 - CROP02:
Leica APO-Telyt-R f11 - CROP01:
Leica APO-Telyt-R f11 - CROP02:
Leica APO-Telyt-R f22 - CROP01:
Leica APO-Telyt-R f22 - CROP02:
Conclusion :
From f3.4 to f5.6, the A7r is far beyond the M in the corners, very sharp results. In the center, the difference is quite small.
Beyond f8, the difference between A7r and the M is very small, in the center and the corners.
Beyond f8, the difference between A7r and the M is very small, in the center and the corners.