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Elite Drawer OAG Kit

Updated Jul 1, 2026• by WO Team 8 min read

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Light-In Side
M54, M48, M68
Light-Out Side
Main: M54, M48 ( M42 optional ) / Guide: M42, 1.25" push-in
Optical Length
37.5 mm
Weight
336 g / 11.85 oz

Size Diagram

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Parts

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  1. Guide Camera Adapter
    1. M42 Guider Thread
    2. 1.25" push-in
    3. 1.25" push-in Locking Knob ( Adapter not rotatable. Actual knob position may vary. )
  1. Helical Focuser ( Focuser Travel: 10mm)
    1. Focuser Locking Knob
  1. High-Transmission Prism ( adjustable height: 7.5~19 mm from field center )
    1. Prism Height Locking Knob
  1. M54 Camera Adapter ( M48 Adapter interchangeable )
    1. Camera Adapter Locking Screws ( H1.5 Set Screws )
  1. Filter Drawer
    1. Filter Drawer Handle
    2. M48 Filter Thread
  1. M54 Telescope Adapter ( M48, M68 Adapter interchangeable )
    1. Telescope Adapter Locking Screws

Operation Guide

1. Check Adapter Compatibility

Make sure the pre-installed adapters match your telescope and camera connections. If needed, swap them with the appropriate included adapters.

Replace the Telescope Adapter

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Remove the six Phillips screws, then replace the pre-installed Telescope Adapter with the appropriate Telescope Adapter included in the kit.

Replace the Camera Adapter

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  1. Remove the Filter Drawer
  1. Loosen the four Camera Adapter Locking Screws (Position shown in the image above). The trapezoid lock requires extra loosening before removal.
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  1. Replace it with the appropriate Camera Adapter included in the kit.

2. Install the Camera

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  1. Remove the Filter Drawer.
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  1. Loosen the four Camera Adapter Locking Screws.
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  1. Remove the Camera Adapter from the OAG assembly.
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  1. Attach the Camera Adapter to your camera.
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  1. Put the camera assembly back onto the OAG.
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  1. Look through the OAG opening and rotate the camera until the sensor’s long side is aligned with the prism.
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  1. Tighten the four Camera Adapter Locking Screws.
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  1. Check through the OAG opening again and adjust the prism height to avoid blocking the sensor.
 

3. Set Up Off-Axis Guiding

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  1. Remove the CAA Locking Knob
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  1. Attach the OAG to the telescope.
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  1. Install the guide camera into the guide camera adapter
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  1. Turn on the main camera and focus the main imaging system.
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  1. Turn on the guide camera and use the helical focuser to bring the guide image into focus.
 

4. Install the Filter

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  1. Pull out the Filter Drawer.
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  1. Install the M48 filter on the Light-In Side of the Filter Drawer.
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  1. Reinsert the Filter Drawer while keeping it pressed against the Light-Out Side of the OAG assembly.