I’ve now completed making the test images for the following lenses, using the methodology of the previous post:
- Sony 16mm f/2.8 E mount
- Leica Tri-Elmar 16/18/21mm f/4
- Leica Super-Elmar 18mm f/3.8 ASPH
- Leica Elmar 24mm f/3.8 ASPH
- Leica Elmarit 24mm f/2.8 ASPH
- Zeiss Biogon 35mm f/2
- Leica Summilux ASPH 50mm f/1.4
In this post, I’ll report the measurements from the test images, at the four corners, as measured as CIELab differences from the center readings.
Sony 16mm f/2.8 E mount
| UR | LR | LL | UL | |
| L* | -23 | -24 | -23 | -24 |
| a* | 2 | 2 | 3 | 3 |
| b* | -4 | -1 | -2 | -4 |
Leica Tri-Elmar 16/18/21mm f/4 16mm
| UR | LR | LL | UL | |
| L* | -12 | -11 | -8 | -11 |
| a* | 1 | 1 | 0 | 0 |
| b* | 1 | -5 | -6 | -1 |
Leica Tri-Elmar 16/18/21mm f/4 18mm
| UR | LR | LL | UL | |
| L* | -10 | -10 | -7 | -9 |
| a* | 1 | 1 | 0 | 0 |
| b* | -1 | -4 | -6 | -1 |
Leica Tri-Elmar 16/18/21mm f/4 21mm
| UR | LR | LL | UL | |
| L* | -9 | -9 | -8 | -8 |
| a* | 1 | 1 | 0 | 0 |
| b* | 0 | -2 | -5 | -3 |
Leica Super-Elmar 18mm f/3.8 ASPH
| UR | LR | LL | UL | |
| L* | -17 | -16 | -14 | -16 |
| a* | 5 | 5 | 3 | 3 |
| b* | -4 | -6 | -7 | -2 |
Leica Elmar 24mm f/3.8 ASPH
| UR | LR | LL | UL | |
| L* | -14 | -15 | -13 | -15 |
| a* | 5 | 4 | 2 | 2 |
| b* | -8 | -7 | -5 | -3 |
Leica Elmarit 24mm f/2.8 ASPH
| UR | LR | LL | UL | |
| L* | -12 | -11 | -11 | -11 |
| a* | 2 | 2 | 1 | 1 |
| b* | -3 | -4 | -5 | -2 |
Zeiss Biogon 35mm f/2
| UR | LR | LL | UL | |
| L* | -8 | -7 | -7 | -8 |
| a* | 2 | 2 | 1 | 1 |
| b* | -2 | -3 | -3 | -1 |
Leica Summilux ASPH 50mm f/1.4
| UR | LR | LL | UL | |
| L* | -5 | -5 | -4 | -5 |
| a* | 1 | 1 | 0 | 0 |
| b* | -1 | -2 | -2 | -1 |
Comments in the next post.
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