Attaching the Visual Back
Installing the Star Diagonal
The visual back is the accessory that allows you to attach all visual accesso- ries to the telescope. To attach the visual back:
1.Remove the plastic cover on the rear cell.
2.Place the knurled slip ring on the visual back over the threads on the rear cell.
3.Hold the visual back with the set screw in a convenient position and rotate the knurled slip ring clockwise until tight.
Once this is done, you are ready to attach other accessories, such as eye- pieces, diagonal prisms, etc.
If you want to remove the visual back, rotate the slip ring counterclockwise until it separates from the rear cell.
The star diagonal is a prism that diverts the light at a right angle to the light path of the telescope. This allows you to observe in positions that are physi- cally more comfortable than if you looked straight through. To attach the star diagonal: NOTE: The
1.Turn the set screw on the visual back until its tip no longer extends into (i.e., obstructs) the inner diameter of the visual back.
2.Slide the chrome portion of the star diagonal into the visual back.
3.Tighten the set screw on the visual back to hold the star diagonal in place.
If you wish to change the orientation of the star diagonal, loosen the set screw on the visual back until the star diagonal rotates freely. Rotate the diagonal to the desired position and tighten the set screw.
Figure
Assembling Your