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10 minute subs, so a lot of it is a single exposure. Basically I took more but they were too badly flawed with cloud.
The Apogee U16M has 60% QE which is no slouch and I guess both refractors are quite large aperture with practically no light loss.
I agree I did not expect it to be worthwhile but it turned out better than I expected with so little exposure time.
Both scopes have a large corrected image circle. Not sure what the TEC's is but the AP's is something like 100mm which is outrageous.
Greg.
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