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27
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Appendix B: Quality information
The following texts and images in B.1 and B.2 depict typical
views of cell mounted AstroSolar
®
Film which may appear to be
imperfect but which show films that are perfectly within
tolerance and which are working without any deterioration to the
image quality.
After mounting and assembly, each Baader Solar Filter has
passed a stringent quality control procedure at our company in
Mammendorf / Germany.
Boxes are sealed with a clear Baader logo mark. Any seeming
imperfections like ripples, dents, or even very small pinholes are
within the manufacturing tolerance and will not deteriorate the
image quality and most of all will not endanger the users
eyesight.
If AstroSolar
®
Film does collect imperfections over time (note
the explanation under B.2) we suggest discharging the
Film. Also check chapter B.1 and B.2 below, or visit our website
www.astrosolar.com
for further information.
The real danger to your filter and eyes (and camera-chip) are
severe scratches or rubbed off zones done to the filter material
inadvertently during handling, were a large amount of the
metallization has been scraped off without you noticing it. Also
dents and creases impressed into the film due to accidental
touching and tearing the filter surface may cause the filter to
break during observation under heavy wind load. The filter
surface must look "unharmed" in every respect before each
solar observation session. A filter whose surface looks
scratched, dented or otherwise violated must be discharged
and/or the film must be exchanged (see section 5.2).
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A.2 AS
S
F
(AstroSolar
®
Spotting Scope
Filter)
This family of filters offers a stable and rigid solution for all
spotting scopes, tele-lenses and amateur telescopes, with
magnifications up to 120x. The AstroSolar
®
filter material is
likewise mounted onto a plastic ring whereas the plastic ring
itself works as stabilizing element for the filter cell. This still
plastic ring is mounted onto the aluminum front frame. The
thermal expansion coefficient of the plastic and the film are
similar.
AS
S
F 50 to 115
packages come
with three centering bolts of 13mm
diameter and 24mm length.
AS
S
F 130 and 150
packages come
with three centering bolts of 10mm
diameter and 38mm length.
A.3 AS
B
F
(AstroSolar
®
Binocular
Filter)
This category is essentially similar to the
AS
S
F in terms of mechanics. The only
difference is that one side is cut off in
order to make them usable on any
binocular - even when the bridge is nearly
closed. (depending on the binocular type).
AS
B
F 50 to 100 packages come with
three centering bolts of 13mm diameter
and 24 mm height.
