Page 1 of 2 12 LastLast
Results 1 to 10 of 12
Like Tree17Likes

Thread: What lenses are these?

  1. #1
    Daktor's Avatar
    Daktor is online now White Dwarf
    Points: 467, Level: 9
    Level completed: 34%, Points required for next Level: 33
    Overall activity: 38.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!
    Join Date
    Feb 2018
    Location
    Nottingham
    Posts
    42
    Points
    467
    Level
    9
    Thanks
    59
    Thanked 3x 3 Posts
    Downloads
    0
    Uploads
    0

    Default What lenses are these?



    Hi,

    I'm an absolute beginner with a Celestron Astromaster 114eq, the telescope came with 2 lenses which are obviously 10mm and 20mm however i do not know what type they are. I watched a video on youtube which said that H type lenses are terrible and the lenses he described looked a lot like mine! Please can someone let me know what type these are (if possible) as they don't have the letter before the size, i have attached the pictures below, not great as there was a limit to size.

    Any help would be greatly appreciated!
    Attached Images Attached Images

  2. #2
    yobbo89's Avatar
    yobbo89 is online now SUPER GIANT
    Points: 12,261, Level: 76
    Level completed: 61%, Points required for next Level: 139
    Overall activity: 36.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!Gallery Achievement!
    Join Date
    Nov 2015
    Location
    brisbane
    Posts
    1,158
    Points
    12,261
    Level
    76
    Thanks
    54
    Thanked 225x 199 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    I think they might be kellner eyepieces

    Attachment 172833

    I don't think they are bottom of the bottom h. i think now days plossl is the market
    Attached Images Attached Images
    SpyderwerX likes this.
    scopes :bresser messier ar127s /skywatcher 10'' dob
    cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60
    mounts : eq6 pro/eq8
    filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, Thousand Oaks Solar Filter.
    extras :Baader MPCC MKIII Coma Corrector,Orion Field
    Flattener,zwo 1.25''adc.

  3. The Following User Says Thank You to yobbo89 For This Useful Post:

    Daktor (02-13-2018)

  4. #3
    Gabby76's Avatar
    Gabby76 is offline Super Moderator
    Points: 55,521, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 99.7%
    Achievements:
    2 Posts Achievement20 Posts Achievement!Gallery Achievement!Album Achievement!50 Posts Achievement!
    Awards:
    Hyperactive Geek - Silver 2rst place for Activity!
    Join Date
    Jan 2016
    Location
    Live: Slovakia Work: Canada
    Posts
    12,769
    Points
    55,521
    Level
    100
    Thanks
    2,404
    Thanked 4,037x 3,423 Posts
    Blog Entries
    3
    Downloads
    3
    Uploads
    0

    Default Re: What lenses are these?

    These are probably the starter Kellner eyepieces, they will get you started viewing with your telescope but will work better in a longer focal length telescope.
    Plossl eyepieces will work well in your reflector if you want to keep the budget down. https://www.firstlightoptics.com/vix...eyepieces.html
    Refractors: Antares 105 f/15, Bresser 102 f/13.2, Celestron 102 f/6.5, 2-150 f/8, Stellarvue 80 f/6.9, TS 102 f/11, Vixen 115 f/7.7
    Mounts: Manfrotto 055PRO, Celestron SLT, Celestron CG-5/ Argo Navis, Vixen SXP Binoculars: Celestron Eyepieces: A-Z

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

    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/Achro thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

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

  5. The Following User Says Thank You to Gabby76 For This Useful Post:

    Daktor (02-13-2018)

  6. #4
    Ozman13's Avatar
    Ozman13 is offline HYPER GIANT
    Points: 21,159, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!365 Days+ Registered Achievement!50 Posts Achievement!
    Join Date
    Jun 2013
    Location
    Hopkinsville Kentucky
    Posts
    5,999
    Points
    21,159
    Level
    100
    Thanks
    141
    Thanked 1,688x 1,496 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    Yep, they're Kellners, not Huygens. They are decent. The plossls Gabby mentions will work well for you for economy EPs.
    SpyderwerX likes this.
    LX200 ACF 8"SCT, Apertura AD12, Celestron C6A SCT, SkyWatcher 120, ES 102CF Apo triplet, ES AR102, ST100, ST90, Apex 90mm Mak, ST80, ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Kasai 2.3x40s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips cam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

  7. The Following User Says Thank You to Ozman13 For This Useful Post:

    Daktor (02-13-2018)

  8. #5
    Daktor's Avatar
    Daktor is online now White Dwarf
    Points: 467, Level: 9
    Level completed: 34%, Points required for next Level: 33
    Overall activity: 38.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!
    Join Date
    Feb 2018
    Location
    Nottingham
    Posts
    42
    Points
    467
    Level
    9
    Thanks
    59
    Thanked 3x 3 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    Brilliant, thanks for the help! I'm looking at getting a barlow lense next!

  9. #6
    Ozman13's Avatar
    Ozman13 is offline HYPER GIANT
    Points: 21,159, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!365 Days+ Registered Achievement!50 Posts Achievement!
    Join Date
    Jun 2013
    Location
    Hopkinsville Kentucky
    Posts
    5,999
    Points
    21,159
    Level
    100
    Thanks
    141
    Thanked 1,688x 1,496 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    Quote Originally Posted by Daktor View Post
    Brilliant, thanks for the help! I'm looking at getting a barlow lense next!
    I would suggest a short GSO x2 Barlow that has a removable bottom element that also gives x1.5 magnification when attached directly to an EP. If you use one with your 20mm EP you get 10mm and 15mm, with your 10mm EP you get 5mm and 7.5mm. If also got a 32mm plossl EP (to give you the widest possible field of view) you would have 16mm and 24mm.
    SpyderwerX and Daktor like this.
    LX200 ACF 8"SCT, Apertura AD12, Celestron C6A SCT, SkyWatcher 120, ES 102CF Apo triplet, ES AR102, ST100, ST90, Apex 90mm Mak, ST80, ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Kasai 2.3x40s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips cam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

  10. The Following User Says Thank You to Ozman13 For This Useful Post:

    Daktor (02-13-2018)

  11. #7
    Don Alvarez's Avatar
    Don Alvarez is offline Bronze Supporter
    Points: 4,502, Level: 45
    Level completed: 68%, Points required for next Level: 48
    Overall activity: 30.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!5 Threads Achievement!200+ Posts Achievement!
    Join Date
    Mar 2017
    Location
    Southern NJ, USA
    Posts
    828
    Points
    4,502
    Level
    45
    Thanks
    62
    Thanked 209x 149 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    The 20mm looks like Celestron's erecting eyepiece. It should flip the image right side up so you can use your telescope for terrestrial viewing as well.

    You'll want to be aware of that for night sky viewing, as the 10mm will produce an inverted image, the 20mm will not.
    SpyderwerX and Daktor like this.
    Telescopes: 10" SkyLine Dobsonian, Meade Infinity 80, Celestron Nextar GT90
    EP: The Five Fingers of Doom: 5.5mm, 8.8mm, 14mm, 20mm, 24mm Meade 5000 UWA's
    Orion Expanse, Various others.
    Binocs: 10x42 Bushnell, 15x70 Celestron Skymaster, 8x42 Sans & Streiffe

    "The fault, dear Brutus, is not in our stars, but in our telescopes...."

  12. The Following User Says Thank You to Don Alvarez For This Useful Post:

    Daktor (02-13-2018)

  13. #8
    SpyderwerX's Avatar
    SpyderwerX is online now Nuetron Sequence
    Points: 12,717, Level: 77
    Level completed: 91%, Points required for next Level: 33
    Overall activity: 53.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Join Date
    Jan 2015
    Location
    upstate SC
    Posts
    2,635
    Points
    12,717
    Level
    77
    Thanks
    654
    Thanked 700x 578 Posts
    Downloads
    5
    Uploads
    0

    Default Re: What lenses are these?

    I'll second Gabby's recommendation of the Vixens. They are top performers that often go unnoticed.
    ~Frankie~ My mind: Always on...Slightly off.
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

    Primary rig: Celestron CPC1100 SCT + StarSense w/ Baader BBHS ClickLock accs.
    OTA's: SkyWatcher 127 Mak...Celestron C6 SCT...SkyWatcher Pro-ED 100...Orion ST120...Orion ST80...Selsi 80mm f/15 refractor
    Mounts: Twilight I...Twilight Nano...NexStar SE...Orion Atlas...EQ3
    EPs: Kokusai Kohki HD-Orthos... TV Plossls: 7.4--55... Naglers: 2.5--26...Leitz Periplans...Edmund RKE's...Orion Ultrascopics... Astronomik & Lumicon & Baader filters..
    .
    .

  14. The Following User Says Thank You to SpyderwerX For This Useful Post:

    Daktor (02-13-2018)

  15. #9
    Daktor's Avatar
    Daktor is online now White Dwarf
    Points: 467, Level: 9
    Level completed: 34%, Points required for next Level: 33
    Overall activity: 38.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!
    Join Date
    Feb 2018
    Location
    Nottingham
    Posts
    42
    Points
    467
    Level
    9
    Thanks
    59
    Thanked 3x 3 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    Thanks for the reply everyone. I actually got a private message stating in capitals that THEY ARE EYEPIECES NOT LENSES! Very nice.... Hahah

    So from now on I guess i know their called eye pieces!

  16. #10
    Ozman13's Avatar
    Ozman13 is offline HYPER GIANT
    Points: 21,159, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement5 Threads Achievement!20 Posts Achievement!365 Days+ Registered Achievement!50 Posts Achievement!
    Join Date
    Jun 2013
    Location
    Hopkinsville Kentucky
    Posts
    5,999
    Points
    21,159
    Level
    100
    Thanks
    141
    Thanked 1,688x 1,496 Posts
    Downloads
    0
    Uploads
    0

    Default Re: What lenses are these?

    Quote Originally Posted by Daktor View Post
    Thanks for the reply everyone. I actually got a private message stating in capitals that THEY ARE EYEPIECES NOT LENSES! Very nice.... Hahah

    So from now on I guess i know their called eye pieces!
    Or EP for short.
    LX200 ACF 8"SCT, Apertura AD12, Celestron C6A SCT, SkyWatcher 120, ES 102CF Apo triplet, ES AR102, ST100, ST90, Apex 90mm Mak, ST80, ETX60, Oberwerk 25x100s, 15x70s, 8x56s, Kasai 2.3x40s, Celestron AVX, CG4, SLT, LCM, Obie HD Parallel Bino mount, Canon T5, Meade DSI2 Pro, Phillips cam, Explore Scientific 30mm, 24mm, 18mm, 14mm, 11mm, 8.8mm, 6.7mm 82 degree EPs, ES 24mm, 20mm, 16mm 68 degree EPs, Baader 9mm Ortho, Meade 5000 SWA EP set, many more various EPs, Baader Moon&SkyGlow, FringeKiller, SemiApo filters, Celestron UHC, Meade 4000 Nebular Filter, Kson OIII, DGM NPB and lots of astro stuff.

 

 
Page 1 of 2 12 LastLast

Similar Threads

  1. I just came across a ton of lenses...
    By Python in forum ATM DIY Telescope Making Forum
    Replies: 2
    Last Post: 10-10-2014, 03:14 PM
  2. new lenses
    By nick.bell11 in forum Astronomy Beginners Forum
    Replies: 5
    Last Post: 07-03-2014, 04:05 PM
  3. Replies: 7
    Last Post: 03-28-2014, 02:34 PM
  4. Which lenses
    By samurai293 in forum Astronomy Beginners Forum
    Replies: 4
    Last Post: 01-20-2014, 09:25 PM
  5. Red your own lenses......
    By 1127Tom in forum ATM DIY Telescope Making Forum
    Replies: 3
    Last Post: 05-30-2010, 12:14 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 01:21 PM.