Golden reflected UV ultraviolet photography VII

Today was one of these last sunny October days with golden sunrays in the evening, so I grabbed my UV equipment and went to the park for some more "golden" UV shots. I used the 94mm CERCO quartz fluorite lens for those. Also here my special "golden" processing for these shots has been used.

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Salvia leaf:


Delphinium seedhead:


iridescent blue Delphinium:


water droplets on leaf:


Quite amazing high resolution this type of UV photography shows.

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

Lens Resolution: Golden reflected UV ultraviolet photography VI

Today I would like to use those recent "golden shots" of autumnal Rudbeckia fulgida leafs to show the different performance of lenses, an older 50mm enlarger lens and the 94mm CERCO quartz fluorite lens. Distance to the leaf was chosen to achieve about matching images. Also here my special "golden" processing for these shots has been used.

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old enlarger lens:


CERCO lens:


Here a diptych to make comparison easier, Cerco lens is left:



It gets pretty obvious, that the Cerco lens delivers a much higher resolution and sharpness.

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

Rudbeckia: Golden reflected UV ultraviolet photography V

Today more "golden shots" of an autumnal plant that I had shown before, Rudbeckia fulgida in that case. I was using this time an older 50mm enlarger lens and was playing around with some lighting situations.

I used my special "golden" processing for these autumnal shots that I have also used a few days ago.

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normal UV:


"golden" UV:


And here now shown on a different leaf, in more detail...

normal UV:


"golden" UV:


Also this was some "artsy" playing with light then my usual documentary work...

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 photography - Inspired by old bromoil prints

I was inspired by some old bromoil prints and used my recently developed UV photographic technique for that.This is new territory for me, so bare with me...

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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

Hydrangea: Golden reflected UV ultraviolet photography IV

Today more about those "golden shots" of an autumnal Hydrangea I was presenting the other day. I was using this time my CERCO 94mm quartz fluorite lens and was playing around with some lighting situations.

I used my special "golden" processing for these autumnal Hydrangea shots that I have also used a few days ago.

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Also this was some "artsy" playing with light then my usual documentary work and I quite like the results.

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

Colorful reflected UV ultraviolet photography ?

I was always wondering if reflected UV photography would have to be so drab in terms of colors. We humans are so used to a wonderful world of colors, so I thought I should experiment a bit with that topic. Well, I was curious to see how that Rudbeckia fulgida flower I have here would look like, if I would create a bit colorful background for it, when shooting it in reflected UV light using my "work horse" UV filter, the Baader-U filter. Well, here an example for that...

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Rudbeckia fulgida:
 

Now this is "artsy" and still documents the wonderful and very prominent UV pattern this flower has, very well still useful as a documentary.

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

D.O. Industries 50mm old enlarger lens: reflected UV ultraviolet photography

I was digging through boxes, when some older, but new in box D.O. Industries f4.5/50mm enlarger lens fell into my hands. Well, I was curious to see how it would perform in UV, so I took a few shots in the Hermannshof park with it, using my "work horse" UV filter that never let me alone, the Baader-U filter. How nice that this lens has a 40.5mm  filter thread, as not all enlarger lenses have that. A simple short M42 focusing helicoid served as a focusing aid and as it has a Leica thread mount (M39), so simple M39-M42 ring was all needed to make it fit. All shots were done at f8 in evening last sunlight with not much UV left to use.

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Rudbeckia hirta, wild form from Illinois:


same, but closer:


Rudbeckia fulgida:
 

Quite impressive performance for a most likely simple Cooke triplet 3e/3g lens. Oh and I forgot to mention, is has no (or barely any) focus shift. Here is its transmission graph versus my usual reference lenses, which reaveals how well this lens transmits UV:

 

More research and testing needs to be done, but it could form the basis of a comparably cheap UV photography system; we'll see...

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