Search found 3 matches

by RoscoeD
Wed Jul 06, 2022 4:26 am
Forum: Feature Suggestions
Topic: A different flat option for IMX294 based camera owners
Replies: 25
Views: 4315

Re: A different flat option for IMX294 based camera owners

Hi, it's in the Sony datasheet for the IMX294/492 - unfortunately I can't share a copy here, but you may be able to find a copy online somewhere if you search a bit. The spec seems to specify that the normal gain should be at least ~8dB before moving to HCG, but most Astro cameras can get away with...
by RoscoeD
Wed Jun 29, 2022 11:59 am
Forum: Feature Suggestions
Topic: A different flat option for IMX294 based camera owners
Replies: 25
Views: 4315

Re: A different flat option for IMX294 based camera owners

Hi Roscoe, Thanks for joining the discussion! I just noticed that you have a William Optics GT 71, similar in size to my William Optics ZenithStar 71. For about $20 you can easily build an EL Panel that works great and that is very portable. Let me know if you are interested. Brian I am, you can re...
by RoscoeD
Wed Jun 29, 2022 3:22 am
Forum: Feature Suggestions
Topic: A different flat option for IMX294 based camera owners
Replies: 25
Views: 4315

Re: A different flat option for IMX294 based camera owners

That was my photo that Borodog posted showing the red artifacts ("My purpose in life may in fact be to serve as a warning to others"). Some details behind that: I took all pictures and calibration frames at gain 121 (ZWO specs show a drop-off in read noise at 120, I padded that for just-in...