The modern imaging of DSO targets involves a digital CMOS or CCD sensor, which have a pixel array and a processor that effectively counts photons as they hit each pixel.
The earliest astrophotos are from around 1830, where they are able to attach some of the earliest cameras to telescopes and use plates to make exposures.
|NAME||format||sensor size (mm)||sensor||pixel size (um)||bit depth||resolution||notes|
|22.3x14.9||4.3||14||5184x3456||60fps crop mode video|
|22.3x14.9||4.3||14||5184x3456||swivel LCD, full spectrum modified|
|4/3" CMOS||21.9 diag||3.8 (3.75?)||12||4656x3520|
|Mono CCD||6.45x4.75||Sony ICX829AL||8.2x8.4||16||752x580||guider camera|
|Orion SSAG (StarShoot AutoGuider)
|1/2" CMOS||6.66x5.32||5.2||8||1280x1024||guider camera|
Bayer Matrix format is GRBG (
When doing StarAlignment in PixInsight, if they do not align then try using "Detected Stars" mode.
In my usage, "Star Detection" parameters that worked well were:
reminder: C0/c1/c2/c3 are GRBG order for this CMOS sensor.
Attaching DSLR (Canon EOS) to Telescope:
2" UltraWide Prime Focus Telescope Adapter (Canon DSLR
T-Ring with 2" extension)
Canon EOS DSLR adapter for 1.25" telescopes:
Canon EOS Power Adapter: (battery is not practical
for long duration exposures)
CMOS/DSLR not really intended for SuperBias (but if not enough Bias, like under 20, a SuperBias might help).
Histogram should be near 50%.
PixInsight Manual Image Calibration, Registration