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Flatteners, Reducers & Extenders
    • Altair Altair Flattener for 60 mm EDF Refractor
    • Altair Flattener for 60 mm EDF Refractor

      This field flattener/reducer screws directly into the rear focuser rotator of your refractor, converting it into an astrograph with a flatter photographic field than the existing lens system alone. 

      $145.00
    • Altair Altair PlanoStar 3" 1.0x Flattener for 102 110 115 130 refractors
    • Altair PlanoStar 3" 1.0x Flattener for 102 110 115 130 refractors

      This large format field flattener is designed to work with the Altair Astro 102mm, 115mm and 130mm F7 EDT Triplet APOs, and has an M48 rear conical adapter for connecting your DSLR or CCD camera.

      $230.00
    • Altair Altair PlanoStar 2" 1.0x Flattener for 80mm F6 Triplet APO
    • Altair PlanoStar 2" 1.0x Flattener for 80mm F6 Triplet APO

      This field flattener is designed to work with the Altair Astro 80mm F6 Super ED Triplet APO, and has an M48 rear thread adapter for connecting your DSLR or CCD camera.

      $130.00
    • Altair Altair Lightwave 0.6x Reducer
    • Altair Lightwave 0.6x Reducer

      The Lightwave 0.6x focal reducer gives an 0.6x reduction in F-Ratio for faster exposure times, as well as a correspondingly wider field for astro-photography. Designed primarily for refractor telescopes of F6 or longer focal ratios.

      $170.00
    • Altair Altair Lightwave 1.0x Reducer/Flattener
    • Altair Lightwave 1.0x Reducer/Flattener

      A non-focal reducing Field Flattener which gives improved results for photography with triplet and doublet refractor telescopes of between F5.5 and approximately F6.25 focal ratio.

      $130.00
    • TAKAHASHI Takahashi FC/FS Multi Flattener CA Ring 100
    • Takahashi FC/FS Multi Flattener CA Ring 100

      The CA ring 100 is designed to adapt the FC/FS Multi-Flattener for use with the FC-100D and FC-100 telescopes.  

      $41.00
    • TAKAHASHI Takahashi FC/FS Multi Flattener CA Ring 76
    • Takahashi FC/FS Multi Flattener CA Ring 76

      The CA ring 76 is designed to adapt the FC/FS Multi-Flattener for use with the FC-76, FC-76D and FS-78 telescopes.  

      $41.00
    • TAKAHASHI Takahashi FC/FS Multi Flattener CA Ring 60C
    • Takahashi FC/FS Multi Flattener CA Ring 60C

      The CA ring 60C is designed to adapt the FC/FS Multi-Flattener for use with the FS-60CB telescope.  

      $41.00
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