Baader Planetarium FCT I User manual

Manual
Congratulations on your purchase of the Baader FCCT (Filter Changer Camera Tilter).
It allows the comfortable use of lters on the Celestron RASA 8 with suitable QHY came-
ras, as well as the adjustment of tilt with the camera still attached to the telescope.
This manual will show you how to install and operate it correctly. Please take a few minu-
tes to read it before using the FCCT.
– EN ver. 02/2022 –
BAADER PLANETARIUM
Zur Sternwarte 4 •D-82291 Mammendorf •Tel. [phone] / 8089-0 •Fax [phone]
www.baader-planetarium.com •[e-mail] •www.celestron.de
G
M
B
H
for QHY-cameras with Ø 72 mm
(e.g. QHY 163 / 174 / 183)
for QHY-cameras with Ø 90 mm
(e.g. QHY 268 / 294)
# 2459070 # 2459071

2Manual: FCCT - Filter Changer Camera Tilter
Table of Contents
Baader Filter Changer & Camera Tilter ................................... 3
FCCT I and FCCT II Scope of Supply..................................... 4
Adjustment and mounting screws....................................... 5
FCCT-Mounting instructions
Preparing the FCCT for Installation ...................................... 6
Differences between the FCCT I and FCCT II parts. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Attaching the FCCT I to the Camera ..................................... 8
Attaching the FCCT II to the Camera.................................... 10
Attaching the FCCT to the RASA 8 ..................................... 12
Inserting of Filters ................................................... 14
Usage of the FCCT Tilter
Adjusting the image plane at the RASA 8 ................................ 15
How to adjust tilt and achieve perfect ne-collimation? ..................... 16
FCCT Accessories................................................... 17

© Baader Planetarium GmbH 3
Baader Filter Changer & Camera Tilter
The Baader FCCT has been specially developed for the Celestron RASA 8. It makes it
possible to mount various QHY cameras on the RASA 8 in such a short way that suf-
cient space remains for a lter slider and a tilt adjustment option. This allows the use
of unmounted 31 mm, 36 mm or 2" (Ø 47.4 mm) lters from Baader Planetarium (these
can be light pollution lters for colour cameras or high-speed narrowband lters for
monochrome cameras). At the same time, it allows much more convenient collimation
of the optics, as the adjustment screws are no longer blocked by the camera, but are
freely accessible on the side of the FCCT.
To make this possible in spite the short back focus of the RASA 8, a somewhat more
complex and very compact adaptation is necessary. Therefore, only some QHY ca-
mera models can be used. A list of currently compatible cameras can be found on the
product page www.baader-planetarium.com/fcct.
The FCCT is only compatible with unmounted lters due to the short backfocus of
the RASA 8. You need a separate lter slider for each lter and these sliders are availa-
ble separately.
For the adaptation, the connecting ange of the camera must be removed. Depen-
ding on the camera, you will need the FCCT I # 2459070 for QHY cameras with 77mm
diameter (e.g. QHY 174/163/183) or the FCCT II # 2459071 for QHY cameras with 90
mm diameter (e.g. QHY 268/294). The two FCCT models differ both by a different
camera ange ring (with 77 or 90 mm) and by a shorter or longer RASA-side adapter.
Please read these instructions carefully before mounting the FCCT. With the up-
grade set # 2459075, the FCCT I can be converted into the FCCT II for larger cameras,
should you change cameras later.
For other cameras, depending on the backfocus, it is possible to use the Baader
Universal Filter Changer UFC by means of the UFC S70 / RASA 8" telescope adapter
(height: 1.4 mm) # 2459136; however, this does not offer the possibility of adjusting
the image plane without removing a larger camera, if necessary, if the diameter of the
selected camera covers the adjustment screws of the telescope.

4Manual: FCCT - Filter Changer Camera Tilter
3
5
Scope of supply of FCCT I and FCCT II
Scope of supply
Before starting, please check the scope of supply. You should nd:
1FCCT I or FCCT II with Dark-Slider 2inside
(is used as dust cover and for taking dark frames)
3Two spacer rings, each 0.5 mm thick
42 mm Allen key, 28 cm long (33 cm with handle)
50.9 mm, 1.3 mm and 1.5 mm Allen Key
6Filter-Extractor-Tool to insert the lter slider into the FCCT
7Storage bag for up to four lter sliders (lter sliders are not included, see page 15)
8One pair of cotton tricot gloves # 2905050
9Three hexagon socket screws (1.5 mm spanner size) to attach the
FCCT camera ange to the QHY camera body
You will also need FCCT lter sliders (not included) and a suitable crosshead screwdriver
(not included) to be able to remove your camera's ring dovetail.
7
4
8
1
9
2
6

© Baader Planetarium GmbH 5
Adjustment and mounting screws
Side view of the FCCT I and FCCT II. Both contain the following screws and compo-
nents, some of which are of different design for FCCT I and FCCT II:
1Six mounting screws for the RASA-ange – 1.3 mm spanner width
2Six adjustment screws for the tilter (in pairs) – 2 mm spanner width
3Two safety screws for the tilter – 0.9 mm spanner width
4FCCT-RASA-ange (connects to the Celestron retaining ring)
5FCCT-Basis (with the chamber for the lter sliders)
6FCCT-QHY-ange (to adapt 77 mm or 90 mm QHY-cameras)
Overview of the FCCT I and FCCT II
FCCT I, designed for QHY-cameras with 77 mm diameter
(z.B. QHY 174/163/183).
for Ø 77 mm
for Ø 90 mm
FCCT II, designed for QHY-cameras with 90 mm diameter
(e.g. QHY 268/294).
2 3
(shortened)
(standard)
2
4
4
5
5
6
6
3
1
1

6Manual: FCCT - Filter Changer Camera Tilter
Preparing the FCCT for Installation
1. Remove the dark-slider. You'll notice that
it is held in place by three neodymium
magnets, which ensure lters can be
easily removed and precisely returned to
the same position.
2. Remove the FCCT-RASA-ange 4by
loosening the six screws 1(see page
5) with the 1.3 mm Allen key. You don't
have to remove them, loosening them is
enough
3. Now turn the FCCT on the other side
and loosen the three pairs of adjustment
screws of the tilter 2with the extra-
long 2 mm Allen key. You don't have to
remove them, it is enough if they stand
out a little bit.
2
The pictures show the FCCT I. The procedure is the same for the FCCT II, only the
FCCT-RASA-ange and the FCCT-QHY-ange look different.
4

© Baader Planetarium GmbH 7
Preparing the FCCT for Installation
4. Now loosen the safety screws 3of the
FCCT QHY camera ange. You don't
have to remove them, it is enough if they
stand out by about 2 mm.
These screws are very important: They
t into a very small groove in the inner
ring and make sure that the parts of the
FCCT can't fall apart at the telescope in
case of an operating error.
5. Now you have disassembled the FCCT
into its three parts:
4– FCCT-RASA-ange
(with three pairs of holes)
5– FCCT-base with tilter screws
6– FCCT-QHY-ange (on its back
is a chamber for the lter slider)
Now you can attach the FCCT-QHY
camera-ange 6to your QHY-camera
as shown on the following pages.
For the FCCT I, please continue reading
on page 8, for the FCCT II on page 10.
6
5
4
4
6
4
6
3
Please note: Differences between the FCCT I and FCCT II parts
The FCCT-RASA-ange of the
FCCT II is shorter, in order to
achieve the same optical length
as with the FCCT I.
The FCCT-QHY-ange of the
FCCT II is the same Ø 77mm an-
ge as that of the FCCT I, but there
is an additional Ø 90mm adapter
on top.

8Manual: FCCT - Filter Changer Camera Tilter
6. First remove the ring dovetail from your
QHY camera, as here in the example of
the QHY174 with the QHY dry cartridge
attached. To do this, you need a normal,
small Phillips screwdriver (not included in
the scope of delivery). Store the screws
and the ring dovetail carefully. Make sure
that the screws do not fall onto the cover
glass of the chip chamber!
7. Now remove only the arrowed three of
the six screws (1.5 mm spanner size)
on the outermost edge of the camera
housing, as shown in the illustration.
Caution: Do not remove all six screws,
as this could cause the chip chamber
to leak. However, removing only three
screws at 120° intervals does not reduce
camera tightness.
8. Place the FCCT-QHY-ange 6in such a
way onto the camera that the lter slider
will later be parallel to the long side of the
camera sensor, when it is pushed into the
FCCT (as indicated with the red lines).
9. Now secure the FCCT-QHY-ange 6
with the three M2 hex screws ( 9in the
scope of delivery on page 4) instead of
the original screws supplied by QHY
which you have removed previously.
Attaching the FCCT I to the Camera
Camera shown with included removable desiccant plug for the sensor chamber.
6

© Baader Planetarium GmbH 9
10. Now put the FCCT-base 5onto the
camera ange that the cut-outs for the
lter slider match.
To do so, at rst bring the dark-slider 2
into its position and check if can be mo-
ved easily, while you attach the upper part
5. In this case, the dark-slider acts as an
adjustment tool.
11. This side view (with the dark slider re-
moved) shows the correctly tted upper
part. If you look closely, you can see that
the lower adjustment screw of the facing
pair of screws is still screwed outwards
here.
12. Now rst screw the two 180° opposite
locking screws 3back in until the visible
end of the grub screw is ush with the ou-
ter edge (and thus engages in the groove
on the inner ring), but does not protrude
deeper – otherwise the tilter function may
be blocked.
Now hand-tighten the three tilt screws 2
on the camera side. All six tilt screws
should be equally deep in the FCCT to
ensure that the camera is initially aligned
parallel to the axis. If possible, check the
alignment with a caliper gauge – the more
precisely the body parts of the tilter are
leveled, the easier it is to adjust the camera.
13. Now the FCCT is mounted on the camera.
Insert the dark slider as dust protection
before mounting the FCCT on the RASA 8
as described from page12 on.
5
Attaching the FCCT I to the Camera
2
3
2

10 Manual: FCCT - Filter Changer Camera Tilter
6. First remove the ring dovetail from your
QHY camera, as here in the example
of the QHY294. To do this, you need a
normal, small Phillips screwdriver (not
included in the scope of delivery). Store
the screws and the ring dovetail carefully.
Make sure that the screws do not fall
onto the cover glass of the chip chamber!
7. Now remove only the marked three of
the six screws on the outermost edge
of the camera housing, as shown in the
illustration.
Caution: Do not remove all six screws,
as this could cause the chip chamber
to leak. However, removing only three
screws at 120° intervals does not reduce
camera tightness.
8. Place the Ø 90 FCCT-QHY-ange 6in
such a way onto the camera that the lter
slider will later be parallel to the short
side of the camera sensor, when it is
pushed into the FCCT (as indicated with
the red lines).
Attaching the FCCT II to the Camera
9. Now secure the FCCT-QHY-ange 6
with the three M2 hex screws ( 9in the
scope of delivery on page 4) instead of
the original screws by QHY which you
have removed before.
6