[M]: Focusing ETX w/201X
| Subject: | [M]: Focusing ETX w/201X |
| From: | Don Dillinger |
| Date: | Sun Sep 21 08:38:30 1997 |
Paul wrote,
>> What do I need to do to get a centered, parfocal eyepiece so that I can
>> quickly center and focus a star image on the 201XT mounted to the ETX? I
>> appreciate any tips or findings from your experiences.
The answer to this is of keen interest to me as well! I just ordered an ETX
and rings, due to off-axis guider fatigue, and will be using the 201 and 9mm
in the same manner as Paul is hoping to. Paul, did you try swapping the 201
for the 9mm in the straight through position? I realize this is not a
solution, but Im curious how it worked, and at least you could do some
imaging. Trying another eyepiece at the right angle adapter, and moving the
201 outward in the straight-through adapter tube and refocusing, are other
things that I would try...
With great interest,
Cordially,
Don Dillinger
Snohomish Hilltop Observatory
Snohomish, WA
CCD images at
>> What do I need to do to get a centered, parfocal eyepiece so that I can
>> quickly center and focus a star image on the 201XT mounted to the ETX? I
>> appreciate any tips or findings from your experiences.
The answer to this is of keen interest to me as well! I just ordered an ETX
and rings, due to off-axis guider fatigue, and will be using the 201 and 9mm
in the same manner as Paul is hoping to. Paul, did you try swapping the 201
for the 9mm in the straight through position? I realize this is not a
solution, but Im curious how it worked, and at least you could do some
imaging. Trying another eyepiece at the right angle adapter, and moving the
201 outward in the straight-through adapter tube and refocusing, are other
things that I would try...
With great interest,
Cordially,
Don Dillinger
Snohomish Hilltop Observatory
Snohomish, WA
CCD images at
