Focus the Guide Camera
The Focus Ring set screw should be loosened allowing the Focus Ring to be rotated. Loosen
the 3 set screws on the Guide Camera Adapter so you can lift the guide camera free from the
Focus Ring. Leave the guide camera adapter threaded to your guide camera.
Hold onto the
guide camera so it doesn’t drop
.
With your software capturing images continuously in Focus mode, lift the guide camera off the
Focus ring, rotate the Focus ring (at least one full turn to start), and then place the guide
camera back down on the Focus ring. Examine the images and FWHM to determine if you’re
getting closer or further away from correct focus.
Repeat the steps below until you’ve achieved good focus with the guide camera:
1. Lift the guide camera off the Focus Ring
2. Rotate the Focus Ring to adjust focus
3. Place the guide camera back on the Focus Ring and hold it in place while
checking the images for correct focus
When you’re happy with the guide camera focus, tighten the Focus Ring set screw to lock the
focus into place.
Rotate the guide camera to the correct orientation and lock it into place by tightening the 3 set
screws around the perimeter of the Guide Camera adapter.
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