© Baader Planetarium GmbH | 2023
15
However, this means an extraordinarily rapid, shock-like heat increase for the sen-
sitive fluorite crystal and an enormous heat load on all optical components above the
Herschel prism (including the image sensor!). Nevertheless, this type of projection
photography is becoming increasingly popular and, thanks to state-of-the-art mounts
with extreme positioning accuracy and slew speeds of up to 20°/s, it is also possible.
For this type of photography, the telescope may practically only be pointed directly at
the sun for the length of the exposure time (a maximum of 5 seconds in total), and we
cannot accept any liability for the equipment connected to the focuser.
However, we expressly recommend that observers who do not specialise in solar
photography always leave the visually mounted 2" filters in the CCS Herschel prism for
safety's sake!
UFC filter drawers
You can insert a UFC filter drawer between the eyepiece clamp and the rotating filter
holder, for example to quickly switch between solar continuum filters for white light
and the calcium filter during photography.
For this you need either
• Diamond Steeltrack
®
M48 adapter
# 2957204
, optical length 1 mm
plus
Baader UFC S70 / M48 (w) telescope adapter (height: 1 mm)
# 2459129
or
• Diamond Steeltrack
®
T-2 adapter
# 2957202
, optical length 2 mm
plus
Baader UFC S70 / T-2 (w) telescope adapter (height: 1 mm)
# 2459130
as well as
• Baader UFC base, telescopic S70 dovetail (height: 13 mm)
# 2459110
and
• a matching UFC camera adapter for your camera, like Baader S52 dovetail Camera-
Adapter for Wide-T-rings (optical height: 2 mm)
# 2459119
, Baader UFC T-2 (m)
Camera-Adapter (optical height: 2 mm)
# 2459115
or Baader UFC M48 (m) Camera-
Adapter (optical height: 2 mm)
# 2459116
and of course the matching filter drawers. For T-2 and M48, there are also quick-chan-
gers available, to easily rotate or remove the camera.
Herschel prism with UFC filter drawer and T-2-thread
(left) and an additional T-2 quick changer (right)
