David Perkin Profile Topics Started Replies Created Engagements Favourites Search topics: Forum Topics Started Viewing 4 topics - 1 through 4 (of 4 total) Topic Voices Posts Last Post Fault in new ALPY 600? Started by: David Perkin in: Spectroscopy 2 10 3 years ago David Perkin Uranus New Feature Ocober 2018 Started by: David Perkin in: Uranus 1 1 3 years, 9 months ago David Perkin Sky at Night March 2015 Started by: David Perkin in: General Discussion 3 4 7 years, 5 months ago David Perkin Camera Advice Started by: David Perkin in: BAA Events and News 3 6 8 years, 1 month ago David Perkin Viewing 4 topics - 1 through 4 (of 4 total)