Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.


Sign in to follow this  

Altair tri band filter

Recommended Posts

A quick ( very quick :) ) test of the tri band filter. Skies cleared at 4:45 am so i  set up and done a flat ( rushed 😕  ) and tested this filter. Weather looks good most of the week and i am off work so i expect to do some further testing soon but thought i would share my first results now. 

130pds on evo mount,  294mc pro bin 1 with AA tri band filter, flat and dark applied, 12 second x 50 frames at 120-150 gain. saved as viewed, again this was done quickly as i am impatient :D 

Orion Nebula


Horse head ( usually i cannot get this at all  ) 


rosette ( it was starting to get light ) tracking seemed to have burped.


I am really looking forward to further testing this week under better conditions :)  with this and the idas p2 i don't think i need to invest in any more filters :D 

  • Like 6

Share this post

Link to post
Share on other sites

very nice results, the "AA tri band filter" seems to be doing well job. best wishes Martin

Share this post

Link to post
Share on other sites

There does seem to be a bit of lopsided haloing around the brighter stars ( collimation ? tilt ? ) but this was rushed. i should get a good session in tonight as the weather is looking clear, so we shall see. Still seems to get decent detail on the rosette ( considering the tracking, flat and daylight breaking ) but hopefully i should get a good comparison with the p2 on the  pacman and bubble tonight :) 

Share this post

Link to post
Share on other sites

Some wispy clouds tonight but i got a few more captures. Same as above but 30-50 x 12 seconds at 100-200 gain. 

Bubble and little lagoon










Edited by barkingsteve
  • Like 7

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.