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I agreeImaging telescope or lens:Samyang 135mm f/2
Imaging camera:ZWO ASI1600MM-Cool
Mount:SkyWatcher AZ-EQ5 GT
Software:Pleaides Astrophoto PixInsight 1.8 Ripley, Astro Pixel Processor, Straton, Photoshop CC, Sequence Generator Pro
Filters:Baader 8.5nm OIII, Baader 7nm Ha
Accessory:ZWO EFW 8x 1.25"
Resolution: 3237x4485
Dates:Oct. 5, 2018, Oct. 6, 2018
Frames:
Baader 7nm Ha: 167x120" (gain: 139.00) -20C bin 1x1
Baader 8.5nm OIII: 174x120" (gain: 139.00) -20C bin 1x1
Integration: 11.4 hours
Darks: ~16
Flats: ~16
Flat darks: ~16
Avg. Moon age: 26.06 days
Avg. Moon phase: 13.26%
Bortle Dark-Sky Scale: 5.00
Mean FWHM: 7.00
Temperature: 10.00
Astrometry.net job: 2307621
RA center: 321.286 degrees
DEC center: 58.948 degrees
Pixel scale: 6.045 arcsec/pixel
Orientation: 232.075 degrees
Field radius: 4.643 degrees
Data source: Backyard
Hi everyone,
I had been looking around again for interesting compositions where I could combine multiple multiple objects and image them together and I found this when experimented around with SGPs framing and mosaic wizard.
Unfortunately there was still a little tilt in my setup when I shot this which I have resolved as well as I can now. I'm not entirely happy with the Samyang 135mm f/2 lens to be honest because the stars do not look too good in the corners but I seem to be out of options, it's just the way it is and I have not seen many better samples out there. It may not be as good as the Esprit, but you can still take some good images with it :) I stopped it down to pretty much exactly f/3.
I am a little disappointed that I could not get OU-4 imaged well, there is just a hint of it. Even without the moon in the sky the 8.5nm filter just does not cut it from my location :( Sooner or later I see 3nm filters in my future, if they were't so extremely expensive.
Cloudy Nights |
CMOS Imagers |
The refractors! |
ZWO ASI1600MM/QHY163M |
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