Another beautiful deep-sky landscape!!
I’d like to ask about the astrotracker: how does it perform? With guiding or without? How many seconds does it hold at long focal lengths?
Thank you!
The tracker is good; with polar alignment using the finder scope, it can guide for an average of 1.5 minutes on a Canon crop sensor with a 135mm lens. With guiding, I captured 5-minute exposures using a 178 camera and an 85mm lens (6 arcseconds per pixel).
Again, it depends on the object's declination. Colleagues from the forum, using guiding and refractors around 400 mm, have successfully captured it. It's certainly a challenge, but it's possible.
Comments
I’d like to ask about the astrotracker: how does it perform? With guiding or without? How many seconds does it hold at long focal lengths?
The tracker is good; with polar alignment using the finder scope, it can guide for an average of 1.5 minutes on a Canon crop sensor with a 135mm lens. With guiding, I captured 5-minute exposures using a 178 camera and an 85mm lens (6 arcseconds per pixel).
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