Quote:
Originally Posted by abetts
Dunk, many thanks for the welcome! Interesting point you bring up about the sensor coverage. I had wondered how much of the sensor was going to be covered but assumed it would be at least APS-C. Out of curiosity, how can I determine this coverage from the scope specs?
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Different manufacturers provide different information about the imaging circle of their scopes, and it is sometimes listed on some more detailed websites.
In this case, it's mentioned on page 7 of the manual:
"The Sky-Watcher ESPRIT 80 Field flattener has been specifically designed for your telescope. It guarantees excellent field flatness across the entire 33 mm imaging plane and ensures full illumination with extremely minimized halation and zero color fringing even on bright objects."
I have the Esprit 100 and the specs list 40mm. I have used my Canon 6D (also full frame) with my scope and you really had to look closely at the stars right in the corner to see that they were true to their word.