[UV] UV Spring Flowers

Some shots of some early 2012 spring flowers, shot using a special, high UV transmitting lens and a UV sensitive camera. Filter used for the UV shot was the 2" Baader-U filter.

[click on image to see a larger one]

These UV image here also uses my standardized false UV color normal + high intensity palette:



Crocus:




Winter Aconite:




I found it quite interesting how detailed the flower structures are rendered using that lens that reaches down to about 300nm, quite rare actually. That same lens was also used for the shots here where I wanted to show How to avoid IR Leakage


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] IR leakage and how to avoid it

One of the most important issues to take care of in reflected UV photography is to avoid IR leakage. Here and example why this is the case.

[click on image to see a larger one]

This left image shows massive IR leakage, whereas the one on the right has none and properly shows the black flower center on this Winter Aconite.


and crocus (which is highly IR reflective) here:


The key is avoiding situations with strong sunlight, using a suitable sunhood and especially using the right UV transmission filter, the new 2" Baader U filter in this case, which has a very good IR suppression up to 1100nm. I had already written about that fact in my article: Principle Thoughts about Lenses + Filters for UV


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