Wednesday, November 17, 2010

Aster hybride meets Noflexar 35mm lens

Today few shots of an Aster hybride using the Noflexar 3.5/35mm lens and various filters.
No noticeable patterns, as expected though.

[click on image to see a larger one]

visible light shot: 


UV shot (using Baader U-filter and Xenon flash): 


Butterfly vision shot (using my XBV2 filter): 


UV induced visible flourescence shot (using Baader UV/IR Cut filter and Nichia 365nm UV light): 


As boring as it might look like, this now is quite interesting (to me) as it shows UV induced IR fluorescence. Lights were all Nichia UV LED sources I could get hold of (to make sure not a bit of IR would be present), a B+W 092 cut filter (>65nm) in front of the lens and 30sec exposure in total darkness:
 


With the naked (but UV protected!!) eye quite a bit deep red fluorescence gets visible, but hard to ban that on a photo....

Same experiment but using a dark orange filter and same UV lighting setup in darkness (Nichia 4x 365nm LED using a front attached Baader U-filter to block any visible light!):



I have now found a reliable method to professionally infinity convert Noflexar 35mm lenses to Nikon mount - ask me if you need one!

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

Sunday, November 7, 2010

Bidens meets UV-Planar 4/60mm

Some Bidens ferulifolia shots today using the famous UV-Planar 4/60mm lens and my proprietary XBV2 butterfly vision mapping filter.

[click on image to see a larger one]

visible light shot: 


butterfly vision shot (simulated, using XBV2 filter): 

That last image has the ultaviolet image a butterfly (and bee) is able to see, mapped into our human image (blue, green, red) as blue so as to simulate the tetrachromatic butterfly vision.

Here another respresentation showing that side-a-side: 


I'm still amazed about what nature has developed to attract butterflies (and bees) attention!

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