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ZWO Off Axis Guider

RM 550.00


ZWO OAG (Off Axis Guider)

ZWO Off-Axis Guider for astronomy photograpy


1.Lightweight, 16.5mm thickness

2.large prism:8*8mm

3.Connect the main imaging camera and the guide camera. No guide scope required!

4.Flexible adaption to your camera and telescope  , such as  M42 and M48.

5.Fully compatible with all ZWO ASI cameras

6.Good stability , strong connection to the telescope


ZWO OAG comes with all adapters you will need for imaging and guiding.

Package includes:


1.       1.25 holder for 1.25″ size body guide camera(Already attached on OAG body)

2.       5mm T2 extender(Already attached on OAG body) for ASI guide camera whose back focus distance is 12.5mm such as  ASI120, ASI224MC, ASI290 etc..

3.       M42 adapter for main imaging camera(Already attached on OAG body)

4.       M48 adapter for main imaging camera(in the box)

5.       OAG body with M48 telescope adapter(in the box)

6.       M42 adapter for telescope(in the box)

Mechanical Draw


Usage Guider:

1.   please caculate the correct required distance for your imaging train at first

for example: you need to attach 21mm extender to ASI071 to reach 55mm back focus distance:17.5mm+21mm+16.5mm=55mm


2. Take off the guider prism part and attach OAG body to the telescope


3. Insert the prism part into the OAG body


4.  Mount the guide camera


5.   Screw the T2 or M48 adaper on the imaging camera according to your the mount type


6. Mount the camera on the OAG in correct position and lock the 3 screws


7. The final setup


Note: please make sure the prism won’t block the imaging area


Use the guiding screw to adjust the guiding camera’s focus.

You’d better do it at day time to make sure imaging camera and guiding camera can reach focus at the same position.


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