[UV] more on 340nm Jupiter-U vs Baader-U filter for short wave reflected UV

Today more about that new Jupiter-U filter of mine vs. the Baader U (Venus) filter. Shots taken today at the wonderfully blossoming Hermannshof, Weinheim, Germany.

[click on image to see a larger one]

The Jupiter-U is a shorter wave filter (center is 340nm) and its transmission is this, as compared to the Baader (Venus) U filter (red line):


Here now some results of today:

Baader U2 left, Jupiter-U right:


VIS left, Baader U2 right:


VIS left, Jupiter-U right:


and another one:

Baader U2 left, Jupiter-U right:


VIS left, Baader U2 right:


VIS left, Jupiter-U right:


very subtle tone differences get visible in comparison to the Baader-U filter.


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