[UV] Guess which is the quartz lens...!?

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Dr Klaus Schmitt
This is a test shot to compare a Fluorite/Quartz lens with a "normal" lens for UV photography. The shots show one each per row. All done at f8 and using the new UG11xx Baader filter for the UV shots. The images are cropped/sized for about the same size for comparison. Focus was NOT completely identical.

And your guess is? Would you consider both lenses for shooting UV or just one of them??

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[Nikon D70 + Baader UG11xx + lens. UV shot about -10EV compared to VIS shot, identical postprocessing and resize for same appearance due to different focal length]
 
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and a second example:

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Thanks Gordon!

Would you be so kind, if you have the time, and evaluate both lenses from your personal viewpoint a bit more detailled - I would like a second opinion...
Here and here are high resolution images.

Thanks, Klaus
 
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my guess is the upper set is the quartz. they seem to have more contrast and more detail than the lower set. I assume post processing was the same on the upper and lower pictures.

however there seems to be more of a focus shift on the upper set which would make me think that is the normal lens.

tough call.

i would definetly use both for UV shooting.
 
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My guess is, that the upper photos are shot with the quarz lens. It looks sharper and has more contrast.

is the post processing on both the same?

difficult...
 
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Just added tech. notes, same postprocessing done, cropped/resized due to different focal lengths.
 
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More examples shot with the "normal" lens, here the "classic target":

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Details (100% crop):

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... and more:

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Details (100% crop, 90 degree rotation):

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... some Myosotis finally:

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Btw. the first row was shot using the fluorite/quartz lens (Coastal Optics), congrats to the ones who got this right!
 

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