Results 1 to 7 of 7
  1. #1
    the_grip's Avatar
    the_grip is offline White Dwarf
    Points: 96, Level: 1
    Level completed: 92%, Points required for next Level: 4
    Overall activity: 0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!
    Join Date
    Oct 2013
    Location
    Texas
    Posts
    13
    Points
    96
    Level
    1
    Thanks
    0
    Thanked 0x 0 Posts

    Default Beginner needing help on eyepieces



    Hi all,

    Thanks to the input from the forum, I purchased a used Orion XT10 Dobsonian scope. It has a FL of 1200mm and appears to be f/4.7 (which I believe is a fast scope). With it came a 18mm Meade eyepiece and a 5mm eyepiece.

    The seller suggested I look into getting a 10mm for medium power and a 2" 32-40mm for very low power. He also suggested Owl Astronomy as a supplier, but I read here that on faster scopes I may want to look elsewhere.

    Can anyone suggest where I should order eyepieces and perhaps comment on eyepieces I may want to purchase?

    Thanks!

  2. #2
    Zilladude's Avatar
    Zilladude is offline SUPER GIANT
    Points: 5,868, Level: 52
    Level completed: 59%, Points required for next Level: 82
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!200+ Posts Achievement!
    Join Date
    Jan 2013
    Location
    Colorado
    Posts
    723
    Points
    5,868
    Level
    52
    Thanks
    0
    Thanked 123x 117 Posts

    Default Re: Beginner needing help on eyepieces

    I have an Orion 10XTi, and it is an f4.7 scope. This is a fast scope and will benefit from better quality eyepieces. I highly recommend the ES 68* or ES82* in it. The 82* 1.25" (4.7-14mm are 1.25", and run $99 US, the 2" are more expensive). I'd probably not go for anything less then the AstroTech Paradigms, or you'll start getting some really bad coma and probably astigmatism. Also, do you wear glasses while viewing? Eye relief is important if you must wear glasses while viewing. The 18 & 5mm should be ok. I'd look for a low power wider field in the 24-30mm range, and, if you don't wear glasses, the ES 82* 11mm is fantastic in the 10XT...and it's only $99 US!
    "My Eyepieces are made from the waste product of exploding stars"
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    10XTi; 102 XLT w/CG4, ST80A w EQ1 Minimount & 2" Focuser, Coronado PST; ES 68: 34,24,20,16; ES 100: 20,14,5.5mm; Naglers: 13T1,11T1,9T1,7T1,4.8T1 (smoothies); 3-6mm zoom; 22 & 24 Pans, 3.7,4.7,8,13,17 Ethos, 6mm,8mm, 12mm, 17.3mm Delos; TV Plossls: 40,32,20,17,15,7.4 Orthos: UO-OPS 12,9; UO HD 7,9; 7mm RGO, Vixen NLV: 25,20,15,10,9,5; Pentax XW: Complete Set; XO: 2.58mm; Pentax 12.5mm Kellner; Misc Orthostars--ES82s are history

  3. #3
    the_grip's Avatar
    the_grip is offline White Dwarf
    Points: 96, Level: 1
    Level completed: 92%, Points required for next Level: 4
    Overall activity: 0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!
    Join Date
    Oct 2013
    Location
    Texas
    Posts
    13
    Points
    96
    Level
    1
    Thanks
    0
    Thanked 0x 0 Posts

    Default Re: Beginner needing help on eyepieces

    Thanks for the response - are you referring to these eyepieces:

    https://www.astronomics.com/explore-...ieces_c67.aspx

    Sorry, I'm brand new so need a little handholding

  4. #4
    KT4HX's Avatar
    KT4HX is offline HYPER GIANT
    Points: 102,795, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    365 Days+ Registered Achievement!First 1000 Experience Points750 Days+ Registered Achievement!1000 Days+ Registered Achievement!200+ Posts Achievement!
    Join Date
    Dec 2008
    Location
    Virginia
    Posts
    11,786
    Points
    102,795
    Level
    100
    Thanks
    1,443
    Thanked 8,098x 4,361 Posts
    Blog Entries
    200

    Default Re: Beginner needing help on eyepieces

    First off, I would work with what you have initially to get a feel for how you like their performance. Learn to use the scope, then consider expansion of your EP collection. There are a lot of good EPs that will work with your scope. The ES's that Zilla mentions, Televues of varying designs, Pentax XWs (the focal lengths of 10mm and shorter). You will need to find if coma is an issue for you personally. Some don't mind it, others do. If you do, then you might want to consider a coma corrector at some point, but its not something to rush into at first. Also, I would caution about OWL. They have had a lot of issues with non-responsiveness of late, and I would recommend dealing with good companies. Enjoy learning how the new scope functions and what it can show you in the sky. Happy viewing!
    Alan || My DSO Blog:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    ---------------------------------------------------------------------------
    Astro Sky 17.5 f/4.5 Dob ||
    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.
    f/5 Dob || Zhumell Z10 f/4.9 Dob
    ES AR127 f/6.5 and ES ED80 f/6 on Twilight-II Mount
    ES 82° 24mm, 18mm; Pentax XW 10mm, 7mm, 5mm
    ---------------------------------------------------------------------------
    Astronomers: We look into the past to see our future.

  5. #5
    sada's Avatar
    sada is offline Banned
    Points: 16,750, Level: 89
    Level completed: 43%, Points required for next Level: 200
    Overall activity: 0%
    Achievements:
    5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!400+ Posts Achievement
    Join Date
    Mar 2012
    Location
    Glasgow/Scotland
    Posts
    4,437
    Points
    16,750
    Level
    89
    Thanks
    204
    Thanked 1,002x 963 Posts

    Default Re: Beginner needing help on eyepieces

    I can't tell you were to buy,but i can tell you that your scope is a fast scope & you may have to buy better quality ep because of it.I love the 2" ep, my es 2" 14mm ep is by far my fav,it cost £390 & that's why i only have one lol.but am not saying you have to buy one,i wood not buy an ep for under £30.Also you need to watch out for your scopes minimum magnification,my 1.25 40mm ep dose not work in my 12" dob but it works fine with my 5" mak-cass,both scopes have the same fl of 1500mm & so the 40mm ep gives me the same magnification.

  6. #6
    the_grip's Avatar
    the_grip is offline White Dwarf
    Points: 96, Level: 1
    Level completed: 92%, Points required for next Level: 4
    Overall activity: 0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!
    Join Date
    Oct 2013
    Location
    Texas
    Posts
    13
    Points
    96
    Level
    1
    Thanks
    0
    Thanked 0x 0 Posts

    Default Re: Beginner needing help on eyepieces

    So can someone confirm that ES is the Explore Scientific eyepiece? Sorry... the acronyms are new to me. And is the ES82 the 82 degree eyepiece?

  7. #7
    Zilladude's Avatar
    Zilladude is offline SUPER GIANT
    Points: 5,868, Level: 52
    Level completed: 59%, Points required for next Level: 82
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!200+ Posts Achievement!
    Join Date
    Jan 2013
    Location
    Colorado
    Posts
    723
    Points
    5,868
    Level
    52
    Thanks
    0
    Thanked 123x 117 Posts

    Default Re: Beginner needing help on eyepieces

    ES is Explore Scientific. The 68 and the 82 degree series eyepieces will both work well in the 10XT. Don't get the ES 70* eyepieces. These were and older line and not as well corrected for fast scopes. The ES eyepieces give 90% of what a Televue eyepiece will do, but at about 1/3 the cost. The only problem with the ES eyepieces is the availability of especiallly the shorter f/l eyepieces due to the overwhelming demand. You might find a few used ones around though. If money is no object, then, by all means, go Televue, Pentax, Zeiss....your eye will like it...your wallet not so much...but you might find some used Televue Naglers (82*) or Panoptics (68*) or Pentax XWs (70*) for an affordable price used as many are selling some of them to buy the Ethos (100*). Also, if you need to wear glasses while viewing will also affect your eyepiece choice.
    "My Eyepieces are made from the waste product of exploding stars"
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    10XTi; 102 XLT w/CG4, ST80A w EQ1 Minimount & 2" Focuser, Coronado PST; ES 68: 34,24,20,16; ES 100: 20,14,5.5mm; Naglers: 13T1,11T1,9T1,7T1,4.8T1 (smoothies); 3-6mm zoom; 22 & 24 Pans, 3.7,4.7,8,13,17 Ethos, 6mm,8mm, 12mm, 17.3mm Delos; TV Plossls: 40,32,20,17,15,7.4 Orthos: UO-OPS 12,9; UO HD 7,9; 7mm RGO, Vixen NLV: 25,20,15,10,9,5; Pentax XW: Complete Set; XO: 2.58mm; Pentax 12.5mm Kellner; Misc Orthostars--ES82s are history

 

 

Similar Threads

  1. Eyepieces for a beginner
    By StarHopper87 in forum Telescope Eyepieces Forum
    Replies: 11
    Last Post: 07-31-2013, 04:07 PM
  2. Newbie needing advice on eyepieces
    By C8-N in forum Astronomy Beginners Forum
    Replies: 12
    Last Post: 07-27-2012, 10:54 PM
  3. Beginner eyepieces help.....!!!!
    By abhijit159 in forum Astronomy Beginners Forum
    Replies: 6
    Last Post: 11-27-2011, 11:41 PM
  4. New Telescope Eyepieces for Beginner - Celestron Set?
    By ebidar in forum Telescope Eyepieces Forum
    Replies: 13
    Last Post: 08-18-2009, 08:03 AM
  5. Beginner needing a scope
    By Psittac in forum Telescope Forum
    Replies: 10
    Last Post: 03-01-2009, 05:50 PM

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 12:05 PM.