Experience and recording M51 with Askar FRA300

Hello Mr. Kloß,

After a few clear nights, I can now say with certainty: Askar's telescope is amazing. This time I focused on M51 and, after sorting out the "bad" frames, I was able to get a total of 5 hours of exposure. The resolution of this little Petzval telescope is fantastic. I'm also attaching a crop of the original image for a detailed view.

With the right seeing, images are possible right up to the absolute optical limits of this telescope.

Fine stars, great details, and a very flat field. I also couldn't detect any shadowing.

The image data:
Askar FRA300 F5
Ioptron GEM28
ZWO ASI183MM Pro
Askar FMA135 with ASI120MM Mini
Astronomik DeepSky Filter Set LRGB
Astronomik Halpha 6nm
Controlled via ASIair Pro

L: 260x30sec / 30x120sec
RGB each: 20x30sec / 10x120sec
Ha: 10x300sec integrated in the red channel

Thank you for the recommendation, which I can definitely pass on. A great telescope with high-quality optics and mechanics, especially considering the price.

Sincerely,
Christoph S.

Link to the Askar FRA300 APO:

https://www.teleskop-spezialisten.de/shop/Teleskope/ED-APO/bis-80mm/ASKAR-FRA300-Pro-60mm-f/5-Quintuplet-Flatfield-APO-Astrograph-Refraktor::5714.html