© Baader Planetarium GmbH | 2020
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If your telescope is equipped with a 2" eyepiece clamp, you can use the binoviewer
with an optional 2" nosepiece
# 2408150
. You can attach it either directly to the
binoviewer with the TQC QuickChanger, or to an optional T-2 star diagonal.
How to find the perfect Glasspath Corrector
For telescopes with an f-ratio of about f/7 or faster, you need a Glasspath Corrector
(GC) to correct the colour aberrations introduced by the prisms at such fast tel-
escopes. It also moves the focal point outwards, which is necessary to reach focus at
all at some telescopes. Besides three GCs especially for the astro T-2 system, there
are also two special 2" GCs, one for Newtonians and one for lens telescopes and
Schmidt-Cassegrains. You can find more about choosing the best GC in the adden-
dum, starting at page 20.
How to find the perfect Eyepieces
The MaxBright
®
II Binoviewer features an optical window
with a clear aperture of 26 mm, so you can use (almost)
all standard 1¼" eyepieces.
The maximum outside body diameter of eyepieces
that can be used with the binoviewer is about 58 mm.
If the binoviewer is used with eyepiece having a larger
diameter, for example the Pentax XW, you may have
problems reaching the correct separation between the
two eyepieces if the interpupillary distance between your
eyes is less than 60 mm.
For observing the planets with high resolution, we
recommend our Classic Ortho or even Carl-Zeiss-Abbe
eyepieces. For general observations, we recommend the
Hyperion 68° and the Morpheus 76° wideangle eyepiec-
es. These provide large eye
relief and are very comfortable to use.
It is extremely important to choose pairs of identical eye-
pieces made by the same manufacturer in the same period
of time. It is quite common to find significant differences
(optically and mechanically) in eyepieces of the same
brand and type built at different periods of time. If you do
not use identical eyepieces, you may experience problems
merging the two images, because the brain can't handle
these different images.
Largest Field of View
Usually, eyepieces with a focal length of 32 mm provide
the largest possible field of view; eyepieces with longer
focal length can give you "only" a brighter image because
of their lower magnification. The reason for this is that the
nosepiece (with the field stop inside of it) physically limits
The Eudiascopic 35mm-eyepieces
show a very large field of view, in spite
of having only a 1¼" nosepiece.
Two 36 mm Hyperion
®
Aspheric at
the MaxBright
®
II Binoviewer
