- Joined
- May 30, 2006
- Messages
- 510
- Real Name
- Dr Klaus Schmitt
I have mentioned earlier that I made some tests after calibrating lenses for UV. This procedure has been done with candidates which showed satisfactory UV transmission. Here n6w some results. Reference lenses are the Nikon UV Nikkor 105mm and the Coastal Optics Micro Apo 105mm. Images cropped/scaled for comparison.
Nikon D70 + 2" UG11xx shot at f11 ISO200 UV: 2" Nikon+Coastal, 4" 135mm lens (ca. -1.5..2EV as compared to the Nikon/Coastal); VIS: 1/125s
1. UV Nikkor VIS
2. 135mm calibrated lens VIS
3) Coastal Optics VIS
4. UV Nikkor UV
5. 135mm calibrated lens UV
6. Coastal Optics UV
7. UV Nikkor Differential
8. 135mm calibrated lens Differential
9. Coastal Optics Differential
View attachment 90005
10. UV Nikkor detail Differential
11. 135mm lens detail Differential
12. Coastal Optics detail Differential
13. UV Nikkor detail UV in bw
14. 135mm lens detail UV in bw
15. Coastal Optics detail UV in bw
I will withold my personal comments for now and would like the group to comment on the results.
Visual Reference Calibration: Macro
Before UV Calibration: Macro
After UV Calibration: Macro
Klaus
Nikon D70 + 2" UG11xx shot at f11 ISO200 UV: 2" Nikon+Coastal, 4" 135mm lens (ca. -1.5..2EV as compared to the Nikon/Coastal); VIS: 1/125s
1. UV Nikkor VIS
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2. 135mm calibrated lens VIS
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3) Coastal Optics VIS
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4. UV Nikkor UV
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5. 135mm calibrated lens UV
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6. Coastal Optics UV
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7. UV Nikkor Differential
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8. 135mm calibrated lens Differential
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9. Coastal Optics Differential
View attachment 90005
10. UV Nikkor detail Differential
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11. 135mm lens detail Differential
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12. Coastal Optics detail Differential
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13. UV Nikkor detail UV in bw
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14. 135mm lens detail UV in bw
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15. Coastal Optics detail UV in bw
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I will withold my personal comments for now and would like the group to comment on the results.
Visual Reference Calibration: Macro
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Before UV Calibration: Macro
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After UV Calibration: Macro
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Klaus