Here is the first light of the Askar 200mm F4. Imaged the Sadr region from the club's dark site. Still some lingering smoke from the fire visible on the horizons but overall quite a clear and dark night. I also had my 14" Dob with me and during acquisition enjoyed many amazing sights including the Sculptor galaxy which looked amazing. I am always amazed as to how large it is.
It was a warm evening for late Sep. When I started the imaging session BackyardEoS was showing the sensor temp of the Canon Ra as 32degC. Eventually late in the evening the temp settled around 24degC. I was expecting to deal with a lot of noise in post processing but the subs came out much cleaner than I expected. Only a light touch required in Topaz Denoise AI.
I have to say the Askar 200mm F4 is a keeper. It is an incredibly sharp lens with flat well corrected field to the edges of my Canon Ra full frame. A perfect match.
Finally, the colors did not quite come out how I wanted. I may reprocess in the future but given limited time this may end up being the final version.
50 x 120s unguided using the Skywatcher Az-Gti
10 x 120s Darks
No Flats or Bias
Askar 200mm F4, Canon Ra (Full Frame), Optolong L-enhance, Az-Gti, WO Wedge
SharpCap for Polar Align, Backyard EoS, Astro Pixel Processor, Topaz Denoise AI
Imaged from SDAA Dark Site Sep 19, 2020. SQM 21.20-21.30
Edit: Note this is the full frame image with no cropping.
Edited by Astrojedi, 20 September 2020 - 08:57 PM.