Founder Optics DTA-FF2 User manual

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1. Model Type：
Confirm you are using the 2’’ or 2. 7’’ Dual Threaded Adapter when you read the manual to
have a correct guide.
For 2’’ Focuser Use- 2 pieces
For 2.7” Focuser Use- 1 piece
2. Installation Diagram：
①
①
①Adapter Ring
②Adapter
①Adapter
DSLR
Dual Threaded Adapter
2’’ & 2.7’’
Focuser
Field Flattener
/ Reducer
T2 ring mount
(If with DSLR
Camera)
DSLR / CCD
Camera
Model No: DTA-FF2/ DTA-RED2
Model No: DTA-FF2.7/ DTA-RED2.7
②
User Manual
For Dual Threaded Adapter

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HOW TO INSTALL
For 2’’ Focuser: (2 pieces)
Step 1. Get ready the dual thread adapter
The adapter ring would be ideally positioned when you received it. Take this step when the
adapter ring is removed by accident.
Turn the adapter clockwise
to fit in the adapter ring.
Turn until the ring to the
right position and make sure
the ring is still movable.
Don’t turn adapter to the
end. Make sure there is a
room for moving the ring
freely.
Step 2. Remove 2’’ barrel from field flattener/ reducer and install the dual thread adapter.
Remove the barrel from the
field flattener / reducer.
Turn the field flattener /
reducer clockwise to fix
firmly on the dual
threaded adapter.
Make sure the field flattener /
reducer and the adapter are
well connected, and the ring
is always rotatable.
Step 3. Connect the set of adapter with the field flattener / reducer (and T2 ring mount) to
the telescope.
Rotatable
For DSLR camera,
you will need a T2
ring mount (Skip
this step if CCD
camera) Fix on
M42 / M48 thread
on the field
flattener / reducer.
Remove 2’’ barrel
adapter from the
telescope (2’’
focuser) (Wear
gloves will be
eaiser to remove it)
Connect the dual
threaded adapter
with the field
flattener / reducer
on the telescope.
Turn the field
flattener / reducer
clockwise but don’t
tight it to the end.
When fix it to the
drawtube, make
sure the T2 ring
mount position
first for installing
DSLR camera. (Skip
this step if CCD
camera)
(Side view)
T2 ring mount
Rotatable
Fixed
T2 ring mount

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Step 4. Connect to the camera (CCD or DSLR camera)
Connect the telescope and
camera. In this step, you
may find your camera is
not always in the right
position to the user.
Adjust the camera to the
right position for user by
adjusting adapter ring (If
the ring is too tight to
rotate, you could loose it
counterclockwise first)
After confirm the camera
position, rotate the
adapter ring clockwise to
fix the camera position.
Make sure the connections
are fixed well.
Step 5. Finish astrophotography- disassembly
Remove the camera from the T2 ring mount first.
Rotate the adapter ring counterclockwise to release the whole set of the dual threaded
adapter and the field flattener / reducer. And then separate all the components step by step.
For 2.7’’ Focuser: (1 piece)
Step 1. Remove 2’’ barrel from the field flattener / reducer
Step 2. Fix the T2 ring mount on the M42 / M48 thread (If for DSLR camera) and also
remove the barrel adapter from the telescope.
Remove the barrel
from the field
flattener /
reducer.
Turn the field
flattener / reducer
clockwise to fix
firmly on dual
threaded adapter.
For DSLR camera
use, you will need a
T2 ring mount. (Skip
this step if CCD
camera) Fix on M42 /
M48 thread on the
field flattener /
reducer.
Remove 2’’ barrel
adapter from the
telescope (2.7”
focuser) (Wear
gloves will be
eaiser to remove it)
Ring is rotatable
T2 ring mount
Connections

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Step 3. Connect the set of adapter with the field flattener / reducer (and T2 ring mount) to
the telescope.
Connect the dual threaded adapter with
the field flattener / reducer on
telescope. Turn the field flattener /
reducer clockwise to fix it firmly on
drawtube
After fix it to the drawtube, you could
adjust the rotator on foucer to make
sure T2 ring mount position first before
installing DSLR camera. (Skip this step if
CCD camera)
Step 4. Connect to the camera (CCD or DSLR camera)
Connect the telescope and camera.
In this step, you may find your camera is
not always in the right position to the
user.
Make the camera to the right position to
user by adjusting the rotator on the 2.7’’
focuser
Step 5. Finish astrophotography- disassembly
Remove the camera from the T2 ring mount first.
Rotate the whole set of dual threaded adapter and the field flattener / reducer
counterclockwise. And then separate all the components step by step.
*Remark*
This Dual Thread Adapter is only designed for Founder Optics telescope use.
T2 ring mount
Rotator is adjustable
Rotator is adjustable
V.1