Search found 6 matches

by James474789
Sat Jun 27, 2020 1:10 pm
Forum: ASIAIR
Topic: What does Std indicate in histogram (along with max, min,avg)
Replies: 1
Views: 165

Re: What does Std indicate in histogram (along with max, min,avg)

In very rough terms it can be considered a measure of the noise in the image. If you use the live stack feature you will note the std falls as new subs are integrated. Std should drop by approx 42% with each doubling of frame count. In terms of setting gain/exposure use tables like these: https://ww...
by James474789
Thu Jan 16, 2020 11:30 am
Forum: Accessories
Topic: Manual focus doesn't work with EFW-EOS adapter unless there is power to the canon lens.
Replies: 5
Views: 2806

Re: Manual focus doesn't work with EFW-EOS adapter unless there is power to the canon lens.

I suspected that, It would be decent to have that in the description since it is almost impossible to buy manual focus lenses any more (except rokinin) and most of us would be expecting to use the canon lenses we have which if they are eos are pretty likely to be autofocus with a manual option that...
by James474789
Thu Jan 16, 2020 11:18 am
Forum: Accessories
Topic: EAF - Backlash?
Replies: 15
Views: 8221

Re: EAF - Backlash?

I have used my EAF on a ZS73 and Skywatcher 200pds. My measured backlash on the ZS73 was approx 50 and on the 200pds it is 130. 200 seems high but plausible?

You could enter backlash data into the ascom driver?
by James474789
Wed Nov 13, 2019 10:19 pm
Forum: Accessories
Topic: EAF firmware version 3.1.8 broken?
Replies: 3
Views: 1078

Re: EAF firmware version 3.1.8 broken?

I got this as well. I unplugged the eaf, replugged and ran a second time and it worked without error.
by James474789
Thu Nov 07, 2019 1:32 pm
Forum: Accessories
Topic: EAF William Optics Compatibility?
Replies: 15
Views: 3161

Re: EAF William Optics Compatibility?

Do you have a similar image for the zs73? I can only see one focus lock screw on the focuser so not sure where the second screw should be located?
by James474789
Mon Oct 07, 2019 1:46 pm
Forum: Accessories
Topic: EAF William Optics Compatibility?
Replies: 15
Views: 3161

EAF William Optics Compatibility?

Is the eaf compatible with the zenithstar 73?

Thanks,