Saturday, December 30, 2023

20231229 M31

Spent half an hour polar aligning with ASIAir.

And then took some images with my Canon 200mm f2.8 wide open, stacked some 30s, 120s and 160s shots automatically by the ASIAir, no dark no bias, unguided.  Some of the shots were damaged by dew.

Just a test shot.

Friday, December 22, 2023

20231221 Moon, second test on the new tripod using the 85mm ED

I forgot that I have tested the 8" SCT amd I pulled out my 85ED to test.

I would say it's rock solid, focusing is easy.

But the cleaning job of the 120mc was not very successful, patches of dust could be seen everywhere.  This aging camera is only USB 2.0, leaving a lot to be desired.


I shall play some DSLR deep sky wide field shots, leave planet and lunar imaging aside first, since I felt myself bitten by the equipment bug again, it's not healthy.

Time to give a pause.

Tuesday, December 19, 2023

20231218 Moon with a new tripod

I have got a much bigger tripod since the old one is too light and thin, it even falls down twice!

Got a clear sky briefly tonight after much rain, but it's still windy, so it's a test of the stability of the setup rather than an imaging session.

I have slewed the Meade 8" SCT around, and the setup remained stable, no sign of tipping over.  I won't say it's rock solid, but it's definitely a stable setup.  Good enough for manual focusing, but of course, the resuilt tonight is not good enough, most likely due to the wind.



Take at prime focus, I didn't pull out any barlows for it does not make sense under such wind!