Instruction Manual
Baader CCS Herschel-Prism
Copyright Baader Planetarium GmbH, all rights reserved
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Important advice:
For each and every type of projection photography
–
be it by barlow lens, eyepiece projection, teleconverter projec-
tion or with FFC
–
the projection device must be mounted above the Herschel Prism. It is not possible to use any
cemented lenses in front of the Herschel Prism as they will be damaged beyond repair within seconds.
4.4.
Tips for photographic observation
Photography in prime focus mode requires very short exposure
times which keep seeing effects quite low. However when using
projection photography exposure times significantly increase
together with the equivalent focal length. This greatly increases
the influence of seeing effects such as air turbulence.
As mentioned before seeing effects are depending on wave
length, stronger in the blue wing of the spectrum and less prom-
inent in the longer wave length in the red end of the spectrum.
For this reason it can be beneficial to only image in the red spec-
tral range. Many successful Solar imagers are using a
Baader
IR-Passfilter
(#2458386) in order to minimize seeing effects
–
the same technique is being applied for planetary imaging.
When using an IR-Passfilter, the Solar Continuum filter must be
removed from the path of light. Also see on our website under
Filters/Contrast Enhancement/
IR-Pass Filter
.
