Wednesday, July 17, 2013

[UV] Old Achromatic Quartz Fluorite Lens for Ultraviolet Photography (V)

Today even more reflected ultraviolet photography shots using that old achromatic quartz fluorite lens, that I have rescued from an older spectrometer system also using my "work horse" UV filter, the Baader-U filter (approx. 320-395nm, peak approx. 350nm) with a Zinnia haageana flower. Light source was a Xenon flash system.

[click on image to see a larger one]

Visible light image using UV/IR Cut filter:
 

UV image using Baader-U filter (approx. 320-395nm, peak approx. 350nm):
 

Diptych form for better comparison:
 

Here, the idea was to show not only that unique UV pattern this flower has, but to also show how that might look like for the somewhat blurry vision a bee has for flowers in further distance (flower in the background). Still the background flowers are noticeable through their unique UV pattern, albeit not as sharp as the one closeup. All that gets nicely visible here.

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

[UV] Old Achromatic Quartz Fluorite Lens for Ultraviolet Photography (IV)

Today more reflected ultraviolet photography shots using that old achromatic quartz fluorite lens, that I have rescued from an older spectrometer system also using my "work horse" UV filter, the Baader-U filter (approx. 320-395nm, peak approx. 350nm) with a Zinnia haageana flower. Light source was a Xenon flash system. All shots were done with variated aperture settings (+1 stop difference per image) to show that influence.

[click on image to see a larger one]

 

 

 

 

Quadriptych form for better comparison:
 

So, I guess the idea gets clear to get some softness into the image, yet preserve the structure of the flower and especially its unique UV pattern. And that gets nicely visible here.

Stay tuned, more will follow on that fascinating subject...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos