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Old 23-03-2019, 09:06 AM
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gregbradley
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gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by kosborn View Post
After a lot of research I bought an Esprit 100ED 12 months ago as my introduction to astrophotography. It was easy to use as a beginner (particularly as it came with a field flattener and everything needed to connect to a Canon DSLR). I've learned a lot since then and don't feel like a beginner anymore but it still doesn't disappoint and I'm sure it won't disappoint 5 years from now. I upgraded from from a Canon DSLR to an ASI1600mm. I do get halos (particularly with narrowband) but that's down to the camera/filters, not the OTA (this as an example). I can strongly recommend an Esprit.


Kevin
Hi Kevin,

Overall quite good but there is significant coma in the corners. This was with the flattener? It should have corrected that. Perhaps the spacing is off but I thought they sold these scopes with the flattener fitted for the right spacing?

Also your sensor is very small so it would be way worse with a full frame camera.

Greg.
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