Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Photo Sharing & Discussion Astronomy & Celestial 
Thread started 09 Aug 2012 (Thursday) 16:03
Search threadPrev/next
sponsored links (only for non-logged)

M8 - first glimpses

 
legoman_iac
Senior Member
308 posts
Likes: 50
Joined Nov 2009
Location: Sydney
     
Aug 09, 2012 16:03 |  #1

Managed an hour under the stars the other night. Its been a few months, I almost forgot which way was north, haha. Set myself up to fail, no polar alignment, no guiding, no focus checks through my laptop ... thought I'd spend my time just enjoying the stars ... then Changed my mind and ran inside to get my camera. Here's my first brief, approx 2 min, glimpse at m8 ...

IMAGE NOT FOUND
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

2x 50d: with 17-85mm f4-5.6, 100mm Macro USM, 50mm f1.8, 2x Sigma 30mm f1.4, 55-250mm (kit lens), Canon 100-400mm L, Tamron 200-400mm f5.6, Samyang 8mm. 480mm refactor with HEQ5. Home made beamsplitter stereo rig.

  
  LOG IN TO REPLY
SteveInNZ
Goldmember
1,426 posts
Likes: 89
Joined Nov 2007
Location: Auckland, New Zealand
     
Aug 09, 2012 17:07 |  #2

I was going to say "long time no hear" but then I looked at how often I post an image (or not). :)
Well done for getting out and looking up.


"Treat every photon with respect" - David Malin.

  
  LOG IN TO REPLY
troypiggo
Goldmember
Avatar
4,743 posts
Likes: 172
Joined Jun 2007
Location: Brisbane, AUSTRALIA
     
Aug 09, 2012 17:30 |  #3

Actually, that's not M8 (Lagoon Nebula). M20 Trifid nebula is the red/blue nebulosity bottom left and M21 is the cluster of stars upper right. M8 is out of frame to the left.

Pretty good for such short exposure time. Well done!


"Interesting. You're afraid of insects and women. Ladybugs must render you catatonic." - Sheldon
Flickr (external link) | Gear List | Macro Rig | Astro Rig | Astro Software Post

  
  LOG IN TO REPLY
legoman_iac
THREAD ­ STARTER
Senior Member
308 posts
Likes: 50
Joined Nov 2009
Location: Sydney
     
Aug 09, 2012 18:21 |  #4

Bahaha, really ... ah yeah, my bad, thanks for the correction. I knew it was Trifid, just got my numbers mixed up.

Hey Steve, been a while ... hope all is well? Did you get to see the transit of venus???

Still finding it difficult to focus, as my clumsy hands have trouble with my 11: 1 focuser then screwing the locking mechanism without it changing focus. Would an electric focuser with better for me?


2x 50d: with 17-85mm f4-5.6, 100mm Macro USM, 50mm f1.8, 2x Sigma 30mm f1.4, 55-250mm (kit lens), Canon 100-400mm L, Tamron 200-400mm f5.6, Samyang 8mm. 480mm refactor with HEQ5. Home made beamsplitter stereo rig.

  
  LOG IN TO REPLY
SteveInNZ
Goldmember
1,426 posts
Likes: 89
Joined Nov 2007
Location: Auckland, New Zealand
     
Aug 09, 2012 19:48 |  #5

Yeah, I got a glimpse of Venus. Enough to tick it off.
I'm not familiar with that scope and focuser but the first things I would be checking are the tension adjustment (and that you don't have a battery grip on the camera). You don't have to crank the locking screw up much. Try it during the day so that you get a feel for how loose it can be before your camera moves when you hold the scope vertical.
If you don't have one, a Bahtinov mask would be a good (and cheaper) start. Then you can confirm your focus and see how much to move it to compensate.


"Treat every photon with respect" - David Malin.

  
  LOG IN TO REPLY
troypiggo
Goldmember
Avatar
4,743 posts
Likes: 172
Joined Jun 2007
Location: Brisbane, AUSTRALIA
     
Aug 09, 2012 19:51 |  #6

How you are confirming focus? Do you have a Bahtinov mask, or just eyeballing it? What scope do you have? No point spending $300 on a Moonlite or Feathertouch focuser if your scope is only with that IMO. Do you even need to lock the focus? It may be able to hold your camera unlocked. Mine does. Admittedly it's a 3" FT focuser, but still, my camera is heavier than yours.


"Interesting. You're afraid of insects and women. Ladybugs must render you catatonic." - Sheldon
Flickr (external link) | Gear List | Macro Rig | Astro Rig | Astro Software Post

  
  LOG IN TO REPLY
legoman_iac
THREAD ­ STARTER
Senior Member
308 posts
Likes: 50
Joined Nov 2009
Location: Sydney
     
Aug 10, 2012 18:53 |  #7

Thanks guys! Yeah, I have a Bahtinov mask though can't really see through my camera so well, so I usually use it with ther brightest star available while my dslr is connected to my laptop with live view. Will play with the tension, never realised I didn't need to lock it down all the way, haha, whoops.

My rig is: Orion ED80TCF on a heq5 mount, with orion guide scope on top, and usually canon 50d on the back. Also have a televue power mate 4x ... though this is even trickier to focus so usually only use it on the sun or moon.

Some people suggested getting a field flattener as some of my shots suggest I need it. Birthday in a few months so just working on my wish list ... haha.

Also, not sure I posted a link to my venus pics, again little out of focus, and shot through a fair bit of cloud:
http://sketchdigital.c​om.au/venus/ (external link)


2x 50d: with 17-85mm f4-5.6, 100mm Macro USM, 50mm f1.8, 2x Sigma 30mm f1.4, 55-250mm (kit lens), Canon 100-400mm L, Tamron 200-400mm f5.6, Samyang 8mm. 480mm refactor with HEQ5. Home made beamsplitter stereo rig.

  
  LOG IN TO REPLY
sponsored links (only for non-logged)

1,905 views & 0 likes for this thread, 3 members have posted to it.
M8 - first glimpses
FORUMS Photo Sharing & Discussion Astronomy & Celestial 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is semonsters
1059 guests, 115 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.