More fun with the OSC Narrowband filter. This is 54 of 63 x300s, ISO800 on my old faithful modded Canon 1100d. I love this filter! Instant small stars and bright nebulae. Easy to process as an OSC image.
Image date, time and location: 2020-07-21, Manche, France
Telescope aperture and focal ratio: TS1506UNC f4 on NEQ6 belt modded. TS Optics finder guider with GPCAM2 mono guidecam.
Camera and filters used: Canon 1100d Modded, Optolong L-eNhance Light Pollution Triple-Bandpass Narrowband Imaging Filter - 2" (https://www.365astronomy.com/optolong-l-enhance-light-pollution-triple-bandpass-narrowband-imaging-filter-2.html)
Processing applied: DSS, DarkTable, Irfanview
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/normal_NGC6960_4h30m54x300s_ISO800_Canon1100d_DSS_DT_IV.jpg) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/NGC6960_4h30m54x300s_ISO800_Canon1100d_DSS_DT_IV.jpg)
That looks a great image Duncan, so the filter is 2" so you can use it with both your CMOS camera and your DSLR?
Nice and sharp, One comment though the background sky looks too red. Otherwise a great result.
Carole
The Clickthrough image is even better.
Lovely image Duncan.
Noel
That looks great Duncan, the filter is paying off well for you.
Edit: I noticed you've what looks like a halo around 52Cyg. I've not noticed haloes so could you confirm. I'll take one of that area myself to check.
Robert
That's a great result Duncan!
It really brings out the nebulosity in a way that can't be achieved with broad spectrum imaging. It's the perfect target for your filter.
As you mention, it keeps the stars small as well.
Mark
No Technical comment ~ I just really like it!
The star at the top gives a sort of 'ting'! (is that a technical comment?)
Best
Hugh
Excellent detail Duncan! ;)
Roberto
Thanks all.
Robert, I think the halo arises from having to mount the filter at the business end of the coma corrector as there isn't room to add a filter drawer between it and the Canon. I believe using the ASI294 I won't see the halo as the filter can be near the sensor.