UV filter 1.25″ – for Venus photography.
The cloud structures of Venus are included for observation
hardly accessible to amateur astronomical devices. The main problem is
the filtering. The Baader Venus filter only lets through the light in
which the cloud structures are visible, the UV light. That makes them
Photography of Venus in UV light possible, structures are already in
smaller devices visible. Any further light passage will
stopped. This is how the structures of the Venusian atmosphere become
visible.
Baader U-Filter 2″ Tpeak about 85% at ZWL 350nm, bandwidth 70nm,
complete blocking of the entire spectral range from 200nm to 1120nm,
40-layer dielectric coating on Schottglas UG-11.