ATIK Cameras OAG - Manual

Off-Axis Guider - User’s manual
Thank you for purchasing the Atik Off-Axis Guider (OAG). With it, you will be able to autoguide using a secondary camera, and, since
the autoguider was designed to be attached to our EFW2, it will act as a single, rigid unit. This is of enormous importance in eliminat-
ing differential flexure, something that is the nightmare of any astrophotographer.
Getting to know your OAG
The OAG was designed to be attached directly to the EFW2, but with the correct adapters it may be possible to attach it to T-threaded
accessories. The OAG system is as follows:
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1 - Focusing ring; 2 - T-thread extensions; 3 - Locking
screw; 4 - Pickup prism
5 - 2” to M54 adapter; 6 - Main body; 7 - 4mm, 7mm and
15mm T-thread extensions
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Attaching your OAG to the EFW2
Attaching the OAG to the EFW2 is a very simple task. Just follow these instructions:
1- Unscrew the 3 grub screws that cover the holes on
the EFW2 front cover.
2- Align the OAG with the 3 holes and attach it to the
EFW2, using the 3 supplied screws.
3- Verify that the 3 screws are in place. The OAG should
now be securely attached to the EFW2.
4- If you need to take it off, just undo the screws. Note
that to change filters there’s no need to take the OAG off.
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