Quick question: If I change my camera offset, will I need a new matching dark library?
Changing offset / new darks?
Well written Respectful
Yep.
Gain, Offset or sensor temperature - all of those, if changed, require a new set of darks.
For my camera I have the following
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 120, offset 50 at -10°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 0, offset 100 at -10°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 120, offset 50 at -20°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 0, offset 100 at -20°C
This covers me for light polluted or dark sky shooting, in both summer and winter..
I refresh my dark libraries periodically, by deleting 10 of the current set of 30 of each set, and replacing them… so the 'average noise profile' slowly changes along with the cameras noise profile.
Gain, Offset or sensor temperature - all of those, if changed, require a new set of darks.
For my camera I have the following
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 120, offset 50 at -10°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 0, offset 100 at -10°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 120, offset 50 at -20°C
30 of each 20, 30, 60, 120, 180, 300, 600, 900s, at Gain 0, offset 100 at -20°C
This covers me for light polluted or dark sky shooting, in both summer and winter..
I refresh my dark libraries periodically, by deleting 10 of the current set of 30 of each set, and replacing them… so the 'average noise profile' slowly changes along with the cameras noise profile.
Helpful Insightful
That's what I thought, thanks for the confirmation!
Well written Respectful
Matching sensor corners with subs corners
Hi there, I have a quite significant sensor tilt issue. Hopefully, I just saw a great thread on Cloudynights revealing that the M42 adapter plate delivered with my touptek ATR2600m can be used as a tilt adapter if one add 6 M2.5 grub screws. https://...
Camera offset changes may affect dark frame matching requirements.
Gradient in dark frames
Hi everyone! I recently bought the Player One Poseidon C Pro camera and after a very long period of cloudy nights it finally cleared and I got to try it. When taking the lights everything was normal. When the sun rose again the pictures got very satu...
Dark frame characteristics directly relevant to calibration library questions.