Parallel exposure with to imaging setups on one mount (ASA DMM85). All used images taken during this encounter (some comet imagers use star field material from other nights ... which I personally don't like)
(1) 45x120sec, Sony A7s (CentralDS modded and cooled), ISO 3200, IDAS-V4 filter, Hyperstar 14"/F1.9
(2) 28x180sec, Sony A7s (JTW modded), ISO 3200, Lumicon Comet filter, RASA 11"/F2.2
Tenerife 1120 m altitude, 2016-06-04 4:30h - 6:00h UT
Higher resolution image:
https://www.flickr.com/photos/fhhemmerich/27360094952/in/dateposted-public/lightbox/
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