REVISED March 7th, 2021- See the bottom of this post for more info… The QHY294C OSC camera has a LGC/HGC mode that switches to it’s low noise High Gain Control[HGC] mode when the GAIN equals 1600 or higher. Normally, a user would not expect that the camera to be limited by it’s fullwell. The QHY294C has an impressive fullwell of ~65,000e-. QHY’s current implementation of the HGC mode causes the fullwell to dramatically drop to ~10,000e-. These cameras have lots of sophisticated hardware on the imaging chip so it’s difficult…
Month: February 2021
D5300 vs QHY294C Elephant’s Trunk
One of my best astrophotos with my Nikon D5300 was of the Elephant’s Trunk Nebula. I didn’t use any filters and I found that the small details were very interesting to study. All of the major details in the Elephant’s trunk are present in both images. The L-eNhance filter seems to bring out even more interesting details. As the Elephant’s trunk stretches upwards you can see that the D5300 image without filters grows vague. The QHY294C+L-eNhance filter image maintains it’s details much further up the Elephant’s trunk. The stars were…