Image Quality Issues with Boller and Chivens 16"
Posted 05 January 2013 - 09:43 PM
The problem is the images seem to be blurrier than they should be. Everything lacks sharpness even when perfectly centered, resulting in a loss of detail. I've used a focusing mask to verify that focus travel is fine, and the unit is collimated as far as I have been told and can see with standard tests. Also, while there is some light dust on the mirror, it is not significant enough to cause these kinds of issues. I can't get a good look at the secondary to see its status though.
Even though the scope is from the 60s I can't imagine that it was always this bad. My 5" Meade ETX puts out better images. At this point all I can imagine is that the articulating eyepiece holder is causing issues but thats just a guess. Removing it is a headache though so I have not tried to see how things look without it yet.
Figured I would put this out there to try and gather any other ideas to look at. Thanks.
Posted 05 January 2013 - 11:58 PM
Posted 06 January 2013 - 05:43 AM
Got any cooling fans on that thing?
Posted 06 January 2013 - 11:01 AM
Posted 06 January 2013 - 12:02 PM
Over the years I have tested hundreds of telescope optics and have seen many bad one from just about every company that has made them. If you never got a good image out of that scope it's time to test the optics and see exactly what the surfaces look like.
Posted 11 February 2013 - 10:58 PM
As noted, there is nothing much to say until the articulating eyepiece holder is removed and an eyepiece used directly.
If your group has a budget for an air ticket & hotel, one of the lead engineers at B&C, Don Winans, is still available for consultation.
Posted 17 February 2013 - 11:57 PM
Posted 03 August 2013 - 06:29 PM
Posted 03 August 2013 - 08:43 PM