Quote:
Originally Posted by Paul Haese
Hi Allan,
I had thought this was the problem that all FSQ's had at one stage and simply ignored it. However, I'll check the filter wheel positioning on my next visit up to the Reach and see if it needs recalibrating. That might be cutting something off just a little.
I am pretty sure it is not the focuser or anything forward of the filter wheel. Though it could be the flattener. An out of focus shot before I go up should tell the story.
Doing this whole region might be a mission. Though Jarrod Koh has recently done a super wide field image with very similar results.
Thanks Paul.
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Thanks Paul for your reply.
I was going to say - the filter wheel but then I saw that it was a color camera -ZWO 2600MC -
so I thought you had no filters.
It must be something cutting off the light to the sensor.
Sensor size is 23.5 x17.5mm so I assume you are using 2" filters?
Jarrod Koh has done some great work:
https://www.facebook.com/JarrodKohPhotography/photos
cheers
Allan