My 2” eyepiece won’t go all the way down into the eyepiece drawtube of the my Sky-Watcher 8-inch Dob. What’s wrong?

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	My 2” eyepiece won’t go all the way down into the eyepiece drawtube of the my Sky-Watcher 8-inch Dob. What’s wrong?

Answer The Sky-Watcher 8" Dobsonians have 2” eyepiece drawtubes with a removable 1-1/4” adapter.

Once the adapter is removed, you can use most styles and brands of 2” barrel diameter oculars in the drawtube with no problems.

However, eyepieces with long nosepieces (certain Televue eyepieces and some others) won’t fully insert into the drawtube because of a small lip about 1-1/2” into the drawtube.

It shouldn’t cause any problems with these eyepieces. Simply lock the setscrew with part of the nosepiece barrel exposed. This will be secure enough for use.

Article Details

Article ID:

2560

Created On:

Nov 03 2011 02:30 PM