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ZWO Seestar S30 Desktop
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!

Optical Accessories

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    Chroma UBVRI Filter Set

    Options available

    UBVRI filter set for photometric imaging Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distortions or "...

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    CA$346.50 - CA$913.50
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    CA$346.50

    Chroma V-Bessel Filter

    Options available

    Green (Visible) photometric filter in UVBRI series Filters designed for use with CCD and for f/4.0 or slower No reflections leading to image distor...

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    CA$385.00 - CA$1,015.00
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    CA$346.50
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  • CA$199.00 - CA$199.00
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    David Astro 0.6x Universal Reducer - 2"

    DAV-FF0.6X
    2 in stock

    55mm back focus Works with f/5 to f/7 refractors Compatible with APS-C size cameras or smaller. Accepts 2" filters Optimized for refractors with...

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  • CA$175.00 - CA$175.00
    CA$175.00
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    CA$175.00

    David Astro 0.8x Universal Reducer - 2"

    DAV-FF0.8X
    1 in stock

    55mm back focus Works with f/5 to f/7 refractors Compatible with APS-C size cameras or smaller. Accepts 2" filters Optimized for refractors with...

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    CA$175.00
  • CA$59.00 - CA$59.00
    CA$59.00
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    CA$59.00

    David Astro 90° Diagonal - 1.25"

    DAV-DIAG-1.25
    5 in stock

    The 1.25" Mirror Diagonal is a must-have accessory for astronomers, providing a comfortable viewing angle and improved image quality during telesc...

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    CA$59.00
    CA$59.00 - CA$59.00
    CA$59.00
  • CA$149.00 - CA$149.00
    CA$149.00
    CA$149.00 - CA$149.00
    CA$149.00

    David Astro 99% Dielectric Twist-Lock Diagonal - 1.25"

    DAV-DIG-TL-1.25
    9 in stock

    The 1.25" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This...

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    CA$149.00
  • CA$219.00 - CA$219.00
    CA$219.00
    CA$219.00 - CA$219.00
    CA$219.00

    David Astro 99% Dielectric Twist-Lock Diagonal - 2"

    DAV-DIG-TL-2
    8 in stock

    The 2" 99% Dielectric Twist-Lock Diagonal is an essential upgrade for astronomers seeking the best in optical performance and convenience. This pre...

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    CA$219.00
  • CA$129.00 - CA$129.00
    CA$129.00
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    CA$129.00

    David Astro 9x50mm Right-Angle Correct Image Finder Scope

    DAV-FIND-9x50-90

    The 9x50mm Right-Angle Correct Image Finder Scope is an invaluable tool for astronomers, designed to make locating celestial objects easier and mo...

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    CA$129.00
  • CA$199.00 - CA$199.00
    CA$199.00
    CA$199.00 - CA$199.00
    CA$199.00

    David Astro Penta Prism Diagonal - 1.25"

    DAV-PENTA-1.25
    4 in stock

    The David Astro Penta Prism 90-Degree Diagonal is a non inverting non reversing diagonal. It’s particularly suited for use with the David Astro Pre...

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    CA$199.00
  • CA$48.00 - CA$48.00
    CA$48.00
    CA$48.00 - CA$48.00
    CA$48.00

    David Astro Planetary Color Filter Kit with Case - 1.25"

    DAV-CF-1.25
    9 in stock

    Filter No.12 Filter No.21 Filter No.23A Filter No.56 Filter No.82 Moon & Sky filter

    CA$48.00 - CA$48.00
    CA$48.00
    CA$48.00 - CA$48.00
    CA$48.00
  • CA$549.00 - CA$549.00
    CA$549.00
    CA$549.00 - CA$549.00
    CA$549.00

    David Astro Premium Linear Erect Binoviewer

    DAV-BINO
    2 in stock

    No backfocus requirement, it can be used with any telescopes, newtonians included, without the need for barlow or extender lenses. Self-Centering ...

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    CA$549.00
  • CA$175.00 - CA$175.00
    CA$175.00
    CA$175.00 - CA$175.00
    CA$175.00

    David Astro Universal Field Flattener - 2"

    DAV-FF1.0X
    5 in stock

    55mm back focus Works with f/5 to f/7 refractors Compatible with APS-C size cameras or smaller. Accepts 2" filters Optimized for refractors with...

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    CA$175.00 - CA$175.00
    CA$175.00
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    CA$175.00
  • CA$28.00 - CA$28.00
    CA$28.00
    CA$28.00 - CA$28.00
    CA$28.00

    David Astro Variable Polarizing Filter - 1.25"

    DAV-VPOL-1.25
    7 in stock

    The Variable Polarizing Filter is an essential tool for astronomical observing, designed to enhance your viewing experience by reducing glare and c...

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    CA$28.00 - CA$28.00
    CA$28.00
    CA$28.00 - CA$28.00
    CA$28.00
  • CA$139.00 - CA$139.00
    CA$139.00
    CA$139.00 - CA$139.00
    CA$139.00

    Daystar 62° 25mm Ortho Eyepiece - 1.25"

    DAY-EP25WA
    1 in stock

    62° orthoscopic eyepiece with a focal length of 25mm.

    CA$139.00 - CA$139.00
    CA$139.00
    CA$139.00 - CA$139.00
    CA$139.00
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    CA$952.00
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    CA$280.00
    CA$280.00 - CA$280.00
    CA$280.00

    Explore Scientific 100° 14mm Waterproof Eyepiece - 2"

    ES-EPWP10014-01
    9 in stock

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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  • Sold out
    CA$1,120.00 - CA$1,120.00
    CA$1,120.00
    CA$1,120.00 - CA$1,120.00
    CA$1,120.00

    Explore Scientific 100° 20mm Waterproof Eyepiece - 2"

    ES-EPWP10020-01

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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    CA$1,120.00 - CA$1,120.00
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    CA$1,120.00
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    CA$1,400.00 - CA$1,400.00
    CA$1,400.00
    CA$1,400.00 - CA$1,400.00
    CA$1,400.00

    Explore Scientific 100° 25mm Waterproof Eyepiece - 2"

    ES-EPWP10025-01

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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    CA$1,400.00 - CA$1,400.00
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    CA$1,400.00
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  • CA$1,540.00 - CA$1,540.00
    CA$1,540.00
    CA$1,540.00 - CA$1,540.00
    CA$1,540.00

    Explore Scientific 100° 30mm Waterproof Eyepiece - 3"

    ES-EPWP10030-01

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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    CA$1,540.00 - CA$1,540.00
    CA$1,540.00
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    CA$1,540.00
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    CA$770.00 - CA$770.00
    CA$770.00
    CA$770.00 - CA$770.00
    CA$770.00

    Explore Scientific 100° 5.5mm Waterproof Eyepiece - 2"

    ES-EPWP10055-01

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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    CA$770.00 - CA$770.00
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    CA$812.00 - CA$812.00
    CA$812.00
    CA$812.00 - CA$812.00
    CA$812.00

    Explore Scientific 100° 9mm Waterproof Eyepiece - 2"

    ES-EPWP1009-01

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transfor...

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  • CA$1,820.00 - CA$1,820.00
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    CA$1,820.00 - CA$1,820.00
    CA$1,820.00

    Explore Scientific 120° 9mm Waterproof Eyepiece -2"

    ES-EPWP12009-01

    The Explore Scientific 9mm 120° Series eyepiece really is in a class by itself. The 120° apparent field of view is unlike anything you have experie...

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    CA$1,820.00 - CA$1,820.00
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    CA$1,820.00
  • CA$210.00 - CA$210.00
    CA$210.00
    CA$210.00 - CA$210.00
    CA$210.00

    Explore Scientific 2" Field Flattener

    ES-FF2F5/F7

    This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7 Causes no change to the telescope focal length 2-inch...

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    CA$210.00 - CA$210.00
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    CA$210.00
  • CA$280.00 - CA$280.00
    CA$280.00
    CA$280.00 - CA$280.00
    CA$280.00

    Explore Scientific 2x Focal Extender - 1.25"

    ES-FE02-125
    3 in stock

    A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of ...

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    CA$280.00 - CA$280.00
    CA$280.00
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    CA$280.00
  • CA$420.00 - CA$420.00
    CA$420.00
    CA$420.00 - CA$420.00
    CA$420.00

    Explore Scientific 2X Focal Extender - 2"

    ES-FE02-020
    3 in stock

    The Explore Scientific 2X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully...

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    CA$420.00 - CA$420.00
    CA$420.00
    CA$420.00 - CA$420.00
    CA$420.00