Samyang

I managed to shoot the Seagull nebula in the constellation Monoceros 5 times. Literally before the shooting, the weather deteriorated and the whole sky was overcast with clouds. Several trips out of town were wasted because of the clouds. On February 5, 2019, the weather still took pity on me and was able to fully capture this interesting area of ​​ionized hydrogen. Below and to the left of it is the Thor’s Helmet nebula in the constellation Canis Major, which got its name for its resemblance to the winged helmet of the Scandinavian thunder god. The departure was very successful, there were only a few clouds at the very beginning, while I set up the autoguider and searched for the nebula. There was wind, but the rocks were well protected from the it.

Туманность

The Seagull and Thor’s Helmet nebulas, February 5, 2019

Equipment:
-Samyang 135\2.0 ED Canon EF lens
-camera Canon 550Da
-filter Svbony CLS clip EOS-C
-mount Sky-Watcher Adventurer
-autoguider: finderscope Sky-Watcher 50 mm + camera ZWO 290 MC.
35 frames per 120 s, ISO 1600.
Calibration with PIPP, stacking with Fitswork.
Scale 25%. Link — at scale 100%.
Location: village Supsekh, Kuban, Russian Federation.

There were great difficulties due to red halos – the result of using a CLS filter with a modified Canon 550Da camera. When shooting without a CLS filter, they practically do not interfere, but due to the noticeable light pollution, I still had to use this accessory. The filter does not transmit light between the red and green ranges of the spectrum, which leads to a choice in focusing – either in the red channel or in the green. It is possible that using a more advanced L-Pro type filter will improve the situation. A compromise is possible – focusing between the red and green channels, but this will lead to a decrease in resolution. Perhaps next time I will try this kind of focus. The problem itself lies in the photo-lens – undematured chromatism and spherical aberration in the red channel.
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Nebulas at Orion, 07-11-2018

Finally completed the processing of one of the Orion shooting sessions. Perhaps, from the tenth approach we managed to get a more or less satisfactory result and pull out many faint nebulae. The filming took place in the city, and I used the Svbony CLS clip filter to suppress flare.

Туманности в Орионе, 7 ноября 2018 года.

Nebulas at Orion, 07-11-2018

Equipment:
-Samyang 135\2.0 ED Canon EF
-Canon 550Da
Svbony CLS clip EOS-C
-mount Sky-Watcher Adventurer
38 frames per 120s, ISO 400.
Calibration and stacking at DeepSkyStacker.
Scale: 25%. At links – in scale 50% и 100%.
Place: Russia, Anapa, backyard.

Image without filter and with filter: Читать далее (Read more) > > >

Another result from the trip to Supsekh on May 13, 2018. I have long wanted to shoot the area around Antares – next to it is a complex of gas and dust nebulae and several globular clusters. A variety of colors and objects makes this region very popular among astrophotographers.

Окрестности Антареса, 13 мая 2018 года.

Region around Antares, May 13, 2018

Equipment:
-Samyang 135\2.0 ED Canon EF lens
-Canon 550Da camera
-Sky-Watcher Adventurer mount
32 frames per 60s, ISO 400.
With 100% scale — at link.
Location: Russia, village Supsekh.

Special thanks to Alexander Sorokin from DS Astro Team for their help in processing the footage.