Here comes another comparison between two cameras, telescopes and mounts. ZWO 1600 MC competes with Moravian G2 8300. Ritchey-Chr├ętien 154 mm competes with Newton 254mm f4 and Gemini G53f is challenged by iOptron CEM25P. I know it is incomparable aperture, price and portability, moreover the integration time is in favour of Newton, but I am very positively surprised by the outcome of the portable setup (ZWO, RC, iOptron). The nebula is logically better captured by the Newton, but RC telescope has definitely more regular star shapes (except the corners, there is quality quite poor).

Brief description of the Dumbbell nebula is here. Upper picture was made by heavy equipment (MII G2, Newton 254mm and Gemini G53f) and the lower picture was captured by portable setup (ZWO, RC 154 and iOptron).

Telescope:Newton 254/1000 mm
RC 154/1370
Aperture:254 mm
154 mm
Focal length:1000 mm
917 mm
MountGemini G53f
iOptron CEM25P
AutoguidingTS 60 mm, FL240 mm, ZWO 174 MM
Camera:Moravian instruments G2 8300M @-30C
ZWO 1600 MC @ -15C
Corrector:GPU
Astro Physics CCDT67
Filters:Baader Ha, OIII, SII
Exposure:46xL 180s bin 1x1, 20xRGB 120s bin2x2
30x 180s Gain 300
Date:2017-08-31