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UV Lens test – sharpness in UV (page 3)

These UV images were shot at F4 (F4.5 in Focotar-II 50mm and F5.6 in El-Nikkor 80mm) and F8, and cropped into the petal area to our right where the focus was set on.

Coastal Optics 60mm F4 APO UV @ F4
Coastal Optics 60mm F4 APO UV @ F4
Coastal Optics 60mm F4 APO UV @ F8
Coastal Optics 60mm F4 APO UV @ F8
Aico 35mm F3.5 old version enlarger lens UV @F4
Aico 35mm F3.5 old version enlarger lens UV @F4
Aico 35mm F3.5 old version enlarger lens UV @F8
Aico 35mm F3.5 old version enlarger lens UV @F8
Aico 35mm F3.5 new version enlarger lens UV @ F4
Aico 35mm F3.5 new version enlarger lens UV @ F4
Aico 35mm F3.5 new version enlarger lens UV @ F8
Aico 35mm F3.5 new version enlarger lens UV @ F8
Mayfair Crystar 35mm F3.5 UV @ F4
Mayfair Crystar 35mm F3.5 UV @ F4
Mayfair Crystar 35mm F3.5 UV @ F8
Mayfair Crystar 35mm F3.5 UV @ F8
El-Nikkor 40mm F4 UV @ F4
El-Nikkor 40mm F4 UV @ F4
El-Nikkor 40mm F4 UV @ F8
El-Nikkor 40mm F4 UV @ F8
El-Nikkor 80mm F5.6 UV @ F5.6
El-Nikkor 80mm F5.6 UV @ F5.6
El-Nikkor 80mm F5.6 UV @ F8
El-Nikkor 80mm F5.6 UV @ F8
Kuribayashi 35mm F3.5 UV @ F4
Kuribayashi 35mm F3.5 UV @ F4
Kuribayashi 35mm F3.5 UV @ F8
Kuribayashi 35mm F3.5 UV @ F8
Leica Focotar-II 50mm F4.5 UV @ F4.5
Leica Focotar-II 50mm F4.5 UV @ F4.5
Leica Focotar-II 50mm F4.5 UV @ F8
Leica Focotar-II 50mm F4.5 UV @ F8
Novoflex Nofelxar 35mm F3.5 UV @ F4
Novoflex Nofelxar 35mm F3.5 UV @ F4
Novoflex Nofelxar 35mm F3.5 UV @ F8
Novoflex Nofelxar 35mm F3.5 UV @ F8
Prinzgalaxy 35mm F3.5 7xxxx series UV @ F4
Prinzgalaxy 35mm F3.5 7xxxx series UV @ F4
Prinzgalaxy 35mm F3.5 7xxxx series UV @ F8
Prinzgalaxy 35mm F3.5 7xxxx series UV @ F8
Soligor 35mm F3.5 9xxxxx series UV @ F4
Soligor 35mm F3.5 9xxxxx series UV @ F4
Soligor 35mm F3.5 9xxxxx series UV @ F8
Soligor 35mm F3.5 9xxxxx series UV @ F8

Summary of sharpness:

Coastal Optics is by far the sharpest wide open. The Soligor 35mm F3.5 9xxxxx series @ F4 is pretty sharp and useable, and stands out compared to the rest.

The enlarger lenses are also pretty sharp wide open, although the Leica and El-Nikkor have smaller apertures; in fact the Leica 50mm was closer in light transmission to F5.6 at its maximum aperture when comparing the shutter speeds used for the focus shift test.

The other 35mm F3.5 lenses do need to be stopped down to about F8, to increase sharpness and contrast for UV-imaging.

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