Hi all,
I had a great Friday night out imaging with a few friends and my 22" SDM Dobsonian until dawn. I experimented with my Nikon D700 instead of Sony NEX-5 and the full frame sensor in D700 vignetted quite a lot with Paracorr type 2 and effective resolution is about 7MP (down from 12MP). Not sure there is any benefit in using a full frame camera instead of APS-C sized with my setup.
A few quick snapshots attached. Full size here:
http://www.terrastro.com/galleries/deep-space-hr/
Drive-through imaging is good fun but I would need a bit more subs to reduce noise. The only image I am reasonably happy with is the Tarantula nebula (NGC 2070).
M83 - 7x30 sec, ISO 3200 Nikon D700
NGC 4945 - 9x30 sec, ISO 3200 Nikon D700
NGC 4038 & 4039 - 7x30 sec, ISO 3200 Nikon D700
NGC 2070 - 9x30sec, ISO 3200 Nikon D700
NGC 6618 - 8x15sec, ISO 3200 Sony Nex 5
Cheers,
Alex