Results 1 to 8 of 8

Thread: Barlow

  1. #1
    Indy2012's Avatar
    Indy2012 is offline Main Sequence
    Points: 1,645, Level: 24
    Level completed: 45%, Points required for next Level: 55
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement50 Posts Achievement!
    Join Date
    Jan 2011
    Location
    san tan valley, Az.
    Posts
    78
    Points
    1,645
    Level
    24
    Thanks
    0
    Thanked 18x 13 Posts

    Default Barlow



    Is a 2" barlow any better then a 1.25 barlow. I was thinking about getting the 2" barlow and a 2" ep to go along with it. I know that depending on what you want to spend the better the optics. Thanks
    Orion XT8, Celestron C50, Meade 36mm, Meade 4000 9.7mm, 9mm, Orion 9x50 raci, Rigel Quickfinder, dob pack. Zhumell ep & filter kit. 2x Barlow, 32mm,12.5mm
    6mm, & 4mm.
    Electronic Clock / Lighted indoor outdoor Thermometer

    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.
    www.eastvalleyastronomy.org

  2. #2
    ghswen's Avatar
    ghswen is offline Super Moderator
    Points: 161,200, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    200+ Posts Achievement!First 1000 Experience Points365 Days+ Registered Achievement!Visitor Messenger Achievement!750 Days+ Registered Achievement!
    Join Date
    Jul 2009
    Location
    Southern California, USA
    Posts
    11,061
    Points
    161,200
    Level
    100
    Thanks
    6,854
    Thanked 7,499x 4,418 Posts

    Default

    From what I have seen the smart purchase is the 2" barlow along with a 1.25 reducer so you can use the larger barlow with your existing eyepieces also.
    Gordon
    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.
    :
    Explore Scientific ED80CF,
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    254N,
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST80, Orion Atlas EQ-g mount, Orion SSAG guider. Baader MPCC MkIII
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    corrector, Vixen 70mm refractor. Lunt LS35THa solar
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    . Skywatcher EQ5pro mount. Imagers: ZWO ASI1600 MM Cool, ZWO ASI174mm-C (for use with my Quark chromosphere), ZWO ASI120MC Filters: LRGB, Ha 7nm, O-III 7nm, S-II 7nm Eyepieces: a few, Primary
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    :
    Cartes du Ciel, EQMOD, SGP,
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    , Photoshop, StarTools V1.4
    Blog:
    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.


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

  3. #3
    roverich's Avatar
    roverich is offline Moderator
    Points: 41,419, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Join Date
    Jan 2009
    Location
    virginia .usa
    Posts
    7,913
    Points
    41,419
    Level
    100
    Thanks
    2,009
    Thanked 1,962x 1,528 Posts

    Default

    I bought a 2in barlow just so i could use it with my 2in eyepieces and with my 1.25in eyepieces as well ..Cant use 2in eyepieces with a 1.25 barlow .
    16in Night sky
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    F4.5 , 90mm refractor 500mm FL , 7in
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    classic Big-mac , Meade eye pieces with a few odd balls thrown in ...
    If you cant stand behind the american soldier ,
    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.
    Please stand in front of one ...

  4. #4
    KathyNS's Avatar
    KathyNS is offline Super Moderator
    Points: 172,794, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 36.0%
    Achievements:
    200+ Posts Achievement!Ghost Achievement! Averaging 5+ posts a day!First 1000 Experience Points400+ Posts AchievementGot three Friends
    Awards:
    Reply Award
    Join Date
    Nov 2010
    Location
    Nova Scotia
    Posts
    25,166
    Points
    172,794
    Level
    100
    Thanks
    6,659
    Thanked 14,980x 9,539 Posts
    Blog Entries
    3

    Default

    If you have a 2" eyepiece, the 2" barlow is better, because you can use it. A 1.25" barlow will only work with a 1.25" eyepiece. If you have a mix of eyepieces, the 2" barlow would make sense, since it will work with all eyepieces.

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


    DSO AP:
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    (pier);
    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.

  5. #5
    ibase's Avatar
    ibase is offline HYPER GIANT
    Points: 22,569, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    10 Days registered200+ Posts Achievement!365 Days+ Registered Achievement!First 1000 Experience Points750 Days+ Registered Achievement!
    Join Date
    Nov 2009
    Location
    Manila
    Posts
    2,384
    Points
    22,569
    Level
    100
    Thanks
    896
    Thanked 881x 692 Posts

    Default

    Quote Originally Posted by Indy2012 View Post
    Is a 2" barlow any better then a 1.25 barlow. I was thinking about getting the 2" barlow and a 2" ep to go along with it. I know that depending on what you want to spend the better the optics. Thanks
    In the utilitarian sense, yes the 2" is better, because it will work with both 2" & 1-1/4" (using an adaptor) eyepieces (EP). But consider also its size/bulk and weight as compared to the smaller 1-1/4" barlow, and you have to ask the question, just how many and how often will you be barlowing the 2" EP? Many have only one 2" EP, in the 30-40mm range, and more EP's in the 1-1/4" format which is where the barlowing (barlows are more used for getting higher power/magnification than anything else) mostly takes place. So the answer to your question will depend on your usage and barlowing habits, but for regular, everyday use and also in an ergonomic sense, I'd prefer to use the 1-1/4" barlow, and its cheaper too; just my 2 cents, hope it helps.

    Best,

    Hernando
    Last edited by ibase; 02-05-2011 at 01:42 AM.

  6. The Following User Says Thank You to ibase For This Useful Post:

    mplanet62 (02-05-2011)

  7. #6
    Indy2012's Avatar
    Indy2012 is offline Main Sequence
    Points: 1,645, Level: 24
    Level completed: 45%, Points required for next Level: 55
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement50 Posts Achievement!
    Join Date
    Jan 2011
    Location
    san tan valley, Az.
    Posts
    78
    Points
    1,645
    Level
    24
    Thanks
    0
    Thanked 18x 13 Posts

    Default

    Currently all the ep's I have are 1.25. I wanted to get a barlow and I wanted to get at least 1 2" ep perhaps a 38mm to use with it. The barlow has the 1.25 adaptor, so I could use it with all my ep's.
    Orion XT8, Celestron C50, Meade 36mm, Meade 4000 9.7mm, 9mm, Orion 9x50 raci, Rigel Quickfinder, dob pack. Zhumell ep & filter kit. 2x Barlow, 32mm,12.5mm
    6mm, & 4mm.
    Electronic Clock / Lighted indoor outdoor Thermometer

    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.
    www.eastvalleyastronomy.org

  8. #7
    Indy2012's Avatar
    Indy2012 is offline Main Sequence
    Points: 1,645, Level: 24
    Level completed: 45%, Points required for next Level: 55
    Overall activity: 0%
    Achievements:
    First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!2 Posts Achievement50 Posts Achievement!
    Join Date
    Jan 2011
    Location
    san tan valley, Az.
    Posts
    78
    Points
    1,645
    Level
    24
    Thanks
    0
    Thanked 18x 13 Posts

    Default barlow

    This is the barlow how does it rate, is it any good? Thanks
    Orion XT8, Celestron C50, Meade 36mm, Meade 4000 9.7mm, 9mm, Orion 9x50 raci, Rigel Quickfinder, dob pack. Zhumell ep & filter kit. 2x Barlow, 32mm,12.5mm
    6mm, & 4mm.
    Electronic Clock / Lighted indoor outdoor Thermometer

    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.
    www.eastvalleyastronomy.org

  9. #8
    roverich's Avatar
    roverich is offline Moderator
    Points: 41,419, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Join Date
    Jan 2009
    Location
    virginia .usa
    Posts
    7,913
    Points
    41,419
    Level
    100
    Thanks
    2,009
    Thanked 1,962x 1,528 Posts

    Default

    Most barlows as well as most eyepieces , scopes and accessories are made in the same factorys overseas just with different names , paint, rubber grips and other small differences ...Just try and get fully multicoated glass ...Possibly ED glass if you can afford it ..
    16in Night sky
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    F4.5 , 90mm refractor 500mm FL , 7in
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    classic Big-mac , Meade eye pieces with a few odd balls thrown in ...
    If you cant stand behind the american soldier ,
    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.
    Please stand in front of one ...

 

 

Similar Threads

  1. Tell me about barlow use!
    By loki41872 in forum Astronomy Beginners Forum
    Replies: 9
    Last Post: 01-03-2011, 02:18 AM
  2. Barlow
    By AbbN in forum Telescope Eyepieces Forum
    Replies: 21
    Last Post: 11-14-2010, 04:52 AM
  3. Which Barlow?
    By deep6 in forum Astrophotography Forum
    Replies: 2
    Last Post: 01-08-2010, 03:41 PM
  4. Barlow ?
    By Terry A Haimann in forum Amateur Astronomy Forum
    Replies: 12
    Last Post: 09-09-2006, 11:30 PM
  5. Barlow 2X
    By chet in forum General Astronomy Forum
    Replies: 0
    Last Post: 02-10-2005, 01:30 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 12:19 PM.