© Baader Planetarium GmbH | 2020
19
# 1508153
is required. Alternatively
to the included 7,5mm extension,
you can use the T-2 Quick-Chang-
er System (TQC/TCR)
# 2456322
The T-2 star diagonal can then
either be attached to the SC-
thread of the telescope with the
help of the BTA-adapter
# 2408160
,
or you can use a 2"/T-2 nose-
piece
# 2408150
if the telescope
is equipped with a 2" ClickLock
®
eyepiece clamp (
# 2956220
for C8
and C925;
# 2956233
for C11 and
C14). The simple clamping screw of
the standard 1.25" visual back is not
strong enough to keep the heavy
combination of binoviewer, eye-
pieces and star diagonal securely in
place.
Shortest possible Adaptation
without
Glasspath Corrector
In combination with telescopes with long focal lengths (f/10 or slower), it may be
interesting to screw the binoviewer directly onto the star diagonal. This gives you a
very short (and theft-proof) adaptation, which is ideal for public observatories. In ad-
dition, you can screw a T-2 star diagonal directly onto our Baader Diamond SteelTrack
focusers with the optional T-2-adapter
# 2957202
– very compact, and protected from
"accidental removal". To do so, you have to remove the T-2 counter nut or the Zeiss
microbayonet.
The shortest possible adaptation can be achieved with the prism diagonal
# 2456005
(T-2 90°, with 32 mm Baader prism).
You also need the T-2 Locking Ring
# 2458271
and the Slip Ring
# 2458272
. Screw
the Locking Ring onto the male thread of the T-2-prism and put the Slip Ring between
binoviewer and locking ring. The raised surface of the slip ring should face towards
the binoviewer and the flat one towards the star diagonal. Now screw
the binoviewer onto the prism and fix it in the desired position with
the locking ring. The slip ring lets you still set the interpuoillar
distance.
If the handle of the locking ring ends up in an
uncomfortable position, you can change
its position. It is only screwed into
the ring, you can put it into any
of the three threaded holes
which are all around the
locking ring, each 120° apart.
The Universal Alan Gee II
1
is connected with the help
of the included 7,5mm extension ring
2
onto the T-2 star
diagonal
3
. The star diagonal is attached to the telescope
either through the BTA-adapter for Schmidt-Cassegrains
# 2408160
4
or a 2"/T-2 nose piece
# 2408150
5
.
2
3
5
4
Universal Alan Gee II
# 2454405
1
