Quartz Soft Focus Lens does Butterfly / Bee Vision

A quick test today confirmed, that my f1.0 Quartz Soft Focus Lens is able to reproduce also ultraviolet. This was proven using my XBV2 butterfly / bee vision filter, which allows to map in UV (ultraviolet) into the visible range as blue, leaving the green and red channel intact.

[click on image to see a larger one]

Human Vision 


(Simulated) Butterfly Vision using XBV2 filter (UV mapped in as blue) 

So you see, that the famous Rudbeckia UV "bullseye" pattern is correctly being reproduced and also the strong UV reflection from the central pitch black center (for us - hence the common name "Blackeyed Susan")  most prominently visible at the leftmost flower.

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

High Speed Xray Lens for Soft Focus Macro

Today about using a very special, f0.75/50mm high speed lens from an old Xray machine on a modern DSLR. I designed and had made a focusing mount for that lens, but focusing range is quite limited to macro only, due to the very short register length.

[click on image to see a larger one]

Due to its extremely shallow Depth of Field (DOF) and lacking color correction, it produces some very dreamy images.


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