Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14
Like Tree3Likes

Thread: Refractors for Astrophotography AP?

  1. #11
    Tylerbo's Avatar
    Tylerbo is offline Main Sequence
    Points: 1,155, Level: 19
    Level completed: 55%, Points required for next Level: 45
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!365 Days+ Registered Achievement!
    Join Date
    Nov 2018
    Location
    Springdale arkansas
    Posts
    86
    Points
    1,155
    Level
    19
    Thanks
    23
    Thanked 13x 6 Posts

    Default Re: Refractors for Astrophotography AP?



    my orion st120 is an F5 and it shows a lot of CA especially on stars and planetary

  2. #12
    Micke187's Avatar
    Micke187 is offline Bright Giants
    Points: 6,682, Level: 56
    Level completed: 66%, Points required for next Level: 68
    Overall activity: 6.0%
    Achievements:
    365 Days+ Registered Achievement!2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!
    Join Date
    Apr 2017
    Location
    sweden Warmland
    Posts
    532
    Points
    6,682
    Level
    56
    Thanks
    94
    Thanked 124x 106 Posts

    Default Re: Refractors for Astrophotography AP?

    That scope you are using is a achromatic refractor. You will want an apochromatic with doublet or a triplet to reduce/eliminate the ca. What budget do you have? You will know shortly that bying AP gear is going to get expensive along the way.
    Mikael
    TS-optics photoline 80 triplet+ x0.79 F&R F/4.74
    Guiding: qhy5lll APM 50mm guidescope
    Main camera: Starlight xpress H18 mono +filterwheel (Ha,OIII, SII ,LRGB baader filter)
    Mount:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Rowan mod
    Arduino controlled focuser with a nema17 motor
    Programs: APT, DSS, PS, Nebulosity3,Startools, Phd2, CDC Eqmod

  3. #13
    sxinias's Avatar
    sxinias is offline Super Moderator
    Points: 323,522, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 31.0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Awards:
    Attachments Award
    Join Date
    Nov 2008
    Location
    Marathon Greece summer Tampa Florida winter
    Posts
    17,799
    Points
    323,522
    Level
    100
    Thanks
    4,582
    Thanked 10,194x 6,475 Posts
    Blog Entries
    4

    Default Re: Refractors for Astrophotography AP?

    Quote Originally Posted by Tylerbo View Post
    my orion st120 is an F5 and it shows a lot of CA especially on stars and planetary
    Please read the rules about posting to old threads!!! Thread closed
    SXINIAS

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.



    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ZEQ25 mount;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    SynScan AZ
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Mount;

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST-80A 80mm Refractor (OTA); Meade
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    203mm SCT (OTA);
    Meade DS2090AT 90mm Refractor; Meade 2045LX3 102mm SCT;

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    4 SE 102mm MAK; Celestron Advanced Series C6S (XLT) 150mm SCT
    with an iOptron GOTO Drive

    My Photos:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  4. #14
    Afterburner1's Avatar
    Afterburner1 is offline White Dwarf
    Points: 274, Level: 5
    Level completed: 48%, Points required for next Level: 26
    Overall activity: 56.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!
    Join Date
    Feb 2019
    Location
    Shingle Springs, California
    Posts
    43
    Points
    274
    Level
    5
    Thanks
    8
    Thanked 5x 5 Posts

    Default Re: Refractors for Astrophotography AP?

    I saw the appeal of using a refractor for astrophotograpy and recently picked up a new Meade adventure scope to do a low-cost intro to this realm - Never had a refractor before and am well aware of needing a field flattener, but will do some test shots with my Nikon DSLRs with the rig attached to my CG-4 mount just to see what it all looks like... I think stepping into all of this with a first-rig and then seeing the effects of not having all the right gear is actually educational and helpful to advance to the next steps in an evolving setup. I do like the quality of the Meade scope... Looked like a good choice after a lot of research and pondering over the past month... -- Jon

 

 
Page 2 of 2 FirstFirst 12

Similar Threads

  1. AP Refractors
    By Ed Majden in forum Amateur Astronomy Forum
    Replies: 17
    Last Post: 06-29-2006, 06:40 AM
  2. 80, 90 mm refractors
    By Robert L in forum UK Astronomy Forum
    Replies: 2
    Last Post: 10-16-2005, 07:55 AM
  3. Why Refractors are Better!
    By Jeff R. Schroeder in forum Amateur Astronomy Forum
    Replies: 50
    Last Post: 04-29-2005, 03:45 PM
  4. New to refractors
    By Fred in forum Amateur Astronomy Forum
    Replies: 14
    Last Post: 12-16-2003, 10:50 PM
  5. ED Refractors
    By Eric in forum Amateur Astronomy Forum
    Replies: 12
    Last Post: 10-13-2003, 01:04 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 07:14 AM.