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Eyepieces, Barlows, and Filters

General discussion and Q&A about all makes and models of oculars, barlows, and filters for astronomy.

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  1. Mak the Night

    Starbase 'Orthoscopic Plossls' Revisited

    Mak the Night, Dec 24, 2021 ... 3 4 5
    Replies:
    80
    Views:
    10,499
    Mak the Night
    Dec 23, 2022
  2. Mak the Night

    SvBony F9125A Barlow Element

    Mak the Night, Jul 5, 2022
    Replies:
    16
    Views:
    2,083
    Mak the Night
    Aug 5, 2022
  3. Mak the Night

    Orion Tri-Mag 1.25" 3x Barlow Lens

    Mak the Night, Jan 6, 2022
    Replies:
    3
    Views:
    2,021
    Mak the Night
    Jan 9, 2022
  4. Mak the Night

    Orion E-Series 7-21mm Zoom

    Mak the Night, Dec 22, 2021
    Replies:
    6
    Views:
    1,170
    Mak the Night
    Dec 31, 2021
  5. Mak the Night

    Altair Lightwave 3x Flat Field Tele Extender Barlow

    Mak the Night, Dec 26, 2021
    Replies:
    0
    Views:
    525
    Mak the Night
    Dec 26, 2021
  6. Mak the Night

    SvBony SV137 2x Barlow

    Mak the Night, Dec 26, 2021
    Replies:
    0
    Views:
    383
    Mak the Night
    Dec 26, 2021
  7. Mak the Night

    Unusual 4.8mm Orthoscopic

    Mak the Night, Dec 26, 2021
    Replies:
    0
    Views:
    559
    Mak the Night
    Dec 26, 2021
  8. Mak the Night

    GSO 3x ED Barlow

    Mak the Night, Dec 23, 2021
    Replies:
    0
    Views:
    411
    Mak the Night
    Dec 23, 2021
  9. Mak the Night

    Starbase 'Orthoscopic Plossls'

    Mak the Night, Dec 22, 2021
    Replies:
    0
    Views:
    686
    Mak the Night
    Dec 22, 2021
  10. Mak the Night

    Altair ULTRAFLAT Eyepiece

    Mak the Night, Apr 3, 2019 ... 2 3 4
    Replies:
    69
    Views:
    13,796
    Mak the Night
    Jun 8, 2021
  11. geoffoto

    FILTER SIZE QUESTION

    geoffoto, Sep 9, 2020
    Replies:
    0
    Views:
    2,521
    geoffoto
    Sep 9, 2020
  12. Mak the Night

    A Cautionary Undercut Tale

    Mak the Night, Jun 27, 2020
    Replies:
    0
    Views:
    1,550
    Mak the Night
    Jun 27, 2020
  13. Mak the Night

    ES 18mm vs 19mm Luminos

    Mak the Night, Jun 5, 2020
    Replies:
    0
    Views:
    951
    Mak the Night
    Jun 5, 2020
  14. ObiWan

    Discussion Focuser/Eyepiece

    ObiWan, May 16, 2020
    Replies:
    0
    Views:
    1,034
    ObiWan
    May 16, 2020
  15. Mak the Night

    Lumicon Comet Filter

    Mak the Night, Feb 5, 2020
    Replies:
    1
    Views:
    1,353
    Mak the Night
    Mar 30, 2020
  16. kiwi

    Discussion eyepiece cleaning TIPS

    kiwi, Feb 21, 2020
    Replies:
    0
    Views:
    1,247
    kiwi
    Feb 21, 2020
  17. kiwi

    Discussion POLAREX UNITRON Filters Van roestvrij staal Wist u dat?

    kiwi, Jan 26, 2020
    Replies:
    0
    Views:
    869
    kiwi
    Jan 26, 2020
  18. Mak the Night

    Pentax XF Zoom

    Mak the Night, Oct 19, 2019
    Replies:
    0
    Views:
    2,163
    Mak the Night
    Oct 19, 2019
  19. Mak the Night

    Zoom Comparison

    Mak the Night, Jul 30, 2019
    Replies:
    6
    Views:
    6,033
    Mak the Night
    Aug 5, 2019
  20. Mak the Night

    19mm Celestron Luminos

    Mak the Night, Jun 23, 2019
    Replies:
    3
    Views:
    1,527
    Mak the Night
    Jul 5, 2019
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