[click on image to see a larger one]
Visible light image using UV/IR cut filter:
![](http://www.pbase.com/kds315/image/150802607/medium.jpg)
UV image using Baader-U filter (approx. 320-395nm, effective peak approx. 375nm):
![](http://www.pbase.com/kds315/image/150860930/medium.jpg)
UV image using a UG11 filter stack:
![](http://www.pbase.com/kds315/image/150860933/medium.jpg)
UV image using Jupiter-U filter:
![](http://www.pbase.com/kds315/image/150860931/medium.jpg)
UV image using a UG1 filter stack:
![](http://www.pbase.com/kds315/image/150860932/medium.jpg)
Interesting to notice, that those very different UV filters produce quite similar results, the deeper into UV reaching ones with finer details, the one rather on the long wave UV end, like the UG1 based filter stack shows less details and tints the image bluish, the latter most likely because of some blue leakage. Seemingly the UG11 + S8612 filter stack as well as the Jupiter-U filter produces quite similar detailled results than the Baader-U filter, but need more exposure and show some greenish overall hue. All that gets nicely visible.
I have written about that flower and those filters previously 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