Thread: Orion widefield
View Single Post
  #1  
Old 28-01-2009, 11:53 AM
tornado33
Registered User

tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Orion widefield

Hi
Was pressed for time last night but managed to squeeze this in. Orion area with Canon 50mm f1.8 lens @f3.5, with the IDAS LPS filter sitting on top.
3x5 mins ISO400, modded 350D. The focus is so fine that moving the focus ring a fraction of a mm makes a big difference. I took 5 sec. test images to check focus till the faint stars were only a pixel in size.

Note Barnards Loop in the image and the very faint Witchhead Nebula (near bottom)

The hassle with widefield imaging is the greater chance of satellite and aircraft intrusion, as we can see from bottom left.

Bigger version here

Digital imaging never ceases to amaze me. To get this in just 15 mins from a light polluted place...... Only gas hypersensitized 2415 technical pan film would get anywhere near it.
Scott
Attached Thumbnails
Click for full-size image (orion3x5minsiso400lps50mmf3.5mod350dsmstars.jpg)
188.7 KB124 views
Reply With Quote