Site OBS PAGE🔎   UP ONE LEVEL
 OJB's Web Site. V 2.1....tion7 observations astro owen2 
Observation

Up to OJB's Observations List

Trifid and Lagoon photo tests

Date:29 Oct 2007 (NZST)
Time:19:05 (NZST)
Title:Trifid and Lagoon photo tests
 
Used 75-300 mm lens on EOS350D piggypack on driven C8 for photos.
Best image of Trifid and Lagoon O209456LagoonTrifid, 30" f/8 iso 1600.
Using 20" f/8 400 asa shows almost no nebulosity.
Using 30" f/8 800 asa shows almost no nebulosity.
Using 15" f/8 1600 asa shows some in M8 but not M20.
Sky unsteady but warm and fairly clear.



 
 Comment:   Interesting   OK   Boring   or:   View Results
My latest blog post: Manufactured Outrage: We might be beginning to win some battles, but the war is far from over. (posted 2024-12-17). My latest podcast: OJB's Podcast 2024-12-04 Avoid Microsoft.
 ©2024 by OJBBlogMacs are BestMac Made
T: 11. H: 217,596,552
Features: RSS Feeds Feedback LogMod: 31 May 2024