Posted 18 April 2016 - 08:28 AM
Posted 19 April 2016 - 07:45 AM
I had an issue with a DS-2114 in my early days. The problem ended up being that the mirror was ground perfectly, but with a focal length that was shorter than it was supposed to be. The focuser simply could not get there. I ended up getting the mirror refigured as a parabolic, instead of its normal spherical shape, and removed the booster lens all together. It made a really nice rich field scope that I still have.
If you are moving the focuser in as far as it will go, then most likely the focal length of the primary is too short for the tube length. You can cut off the rear end of the tube some to make up the difference. I would try to cut off enough so that when the scope is focused, the silvery part of the draw tube just barely is exposed in the main tube or not exposed at all.
Hope this helps,
Posted 20 April 2016 - 12:39 PM
Posted 23 April 2016 - 07:16 AM
Posted 23 April 2016 - 10:25 AM
Thanks for the update! Glad to here it was a little better. Seeing does not adversely affect these small scope the way it does a bigger one, but it can still be a negative factor as well as cool down. I am interested in what you find out.
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