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    CA$63.00 - CA$63.00
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    William Optics 2x Barlow Nosepiece for Binoviewer

    WO-E-BINO-B2
    1 in stock

    2x magnification Barlow lens specifically designed for binoviewers Increases magnification while maintaining focus with binoviewer setups ...

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    CA$63.00 - CA$63.00
    CA$63.00
    CA$63.00 - CA$63.00
    CA$63.00
  • CA$132.00 - CA$132.00
    CA$132.00
    CA$132.00 - CA$132.00
    CA$132.00

    William Optics 45° Erecting Prism - 1.25"

    WO-D-EP125

    45-degree erecting prism for 1.25" telescope eyepieces Provides correct image orientation for terrestrial and astronomical viewing Des...

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    CA$132.00 - CA$132.00
    CA$132.00
    CA$132.00 - CA$132.00
    CA$132.00
  • CA$138.00 - CA$138.00
    CA$138.00
    CA$138.00 - CA$138.00
    CA$138.00

    William Optics 90° Erect Prism - 1.25"

    WO-D-EP90-125II

    90-degree erecting prism for 1.25" telescope eyepieces Provides correct image orientation for terrestrial and astronomical viewing Des...

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    CA$138.00 - CA$138.00
    CA$138.00
    CA$138.00 - CA$138.00
    CA$138.00
  • CA$158.00 - CA$158.00
    CA$158.00
    CA$158.00 - CA$158.00
    CA$158.00

    William Optics 99% Dielectric Dura Bright Diagonal - 1.25"

    WO-D-125D-C-DB
    1 in stock

    High-quality 1.25" diagonal for refractor and catadioptric telescopes 99% reflectivity dielectric coating for maximum light transmission ...

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    CA$158.00 - CA$158.00
    CA$158.00
    CA$158.00 - CA$158.00
    CA$158.00
  • CA$228.00 - CA$228.00
    CA$228.00
    CA$228.00 - CA$228.00
    CA$228.00

    William Optics 99% Dielectric Dura Bright Diagonal - 2"

    WO-D-DIG2D-C-DB-T
    2 in stock

    High-quality 2" diagonal for refractor and catadioptric telescopes 99% reflectivity dielectric coating for maximum light transmission ...

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    CA$228.00 - CA$228.00
    CA$228.00
    CA$228.00 - CA$228.00
    CA$228.00
  • CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00

    William Optics Adjustable Flat61 for Z61

    WO-P-FLAT61A
    1 in stock

    Adjustable field flattener specifically designed for the William Optics Z61 telescope Improves edge-to-edge sharpness for astrophotography w...

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    CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00
  • CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00

    William Optics Adjustable Flat6AIII

    WO-P-FLAT6AIII
    3 in stock

    Versatile field flattener for William Optics refractor telescopes Adjustable design for optimal performance with various camera setups ...

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    CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00
  • CA$422.00 - CA$422.00
    CA$422.00
    CA$422.00 - CA$422.00
    CA$422.00

    William Optics Adjustable Flat6AIII for FLT91

    WO-P-FLAT6AIII-M92
    1 in stock

    0.8x reducer For William Optics FLT91 refractor Description The William Optics Adjustable Flat6AIII for FLT91 is a special editio...

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    CA$422.00 - CA$422.00
    CA$422.00
    CA$422.00 - CA$422.00
    CA$422.00
  • CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00

    William Optics Adjustable Flat73A for Z73

    WO-P-FLAT73A
    1 in stock

    Improves edge-to-edge sharpness for astrophotography 43mm image circle Adjustable design 66.2mm back focus Description Specifications In the Bo...

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    CA$330.00 - CA$330.00
    CA$330.00
    CA$330.00 - CA$330.00
    CA$330.00
  • CA$409.00 - CA$409.00
    CA$409.00
    CA$409.00 - CA$409.00
    CA$409.00

    William Optics Adjustable Reducer Flattener Flat61R for Z61

    WO-P-FLAT61R

    Adjustable reducer and field flattener for William Optics Z61 telescope Improves image sharpness and reduces distortion Description ...

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    CA$409.00 - CA$409.00
    CA$409.00
    CA$409.00 - CA$409.00
    CA$409.00
  • CA$409.00 - CA$409.00
    CA$409.00
    CA$409.00 - CA$409.00
    CA$409.00

    William Optics Adjustable Reducer Flattener Flat73R for Z73

    WO-P-FLAT73R

    Adjustable reducer and field flattener for William Optics Z73 telescope Improves image sharpness and reduces distortion Description ...

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    CA$409.00 - CA$409.00
    CA$409.00
    CA$409.00 - CA$409.00
    CA$409.00
  • CA$446.00 - CA$446.00
    CA$446.00
    CA$446.00 - CA$446.00
    CA$446.00

    William Optics Binoviewer Complete Package

    WO-E-BINO-P
    3 in stock

    Enhances visual astronomy with comfortable two-eye viewing Complete package includes binoviewer, eyepieces, and accessories Descriptio...

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    CA$446.00 - CA$446.00
    CA$446.00
    CA$446.00 - CA$446.00
    CA$446.00
  • CA$945.00 - CA$945.00
    CA$945.00
    CA$945.00 - CA$945.00
    CA$945.00

    William Optics Flattener 68III

    WO-P-FLAT68III

    Designed specifically for William Optics 68mm f/6 refractor telescopes Corrects field curvature for improved edge-to-edge sharpness De...

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    CA$945.00 - CA$945.00
    CA$945.00
    CA$945.00 - CA$945.00
    CA$945.00
  • CA$197.00 - CA$197.00
    CA$197.00
    CA$197.00 - CA$197.00
    CA$197.00

    William Optics RedCat Erecting Prism - 1.25" Silver Version

    WO-D-EP90-125-RC51-SL

    1.25" erecting prism for correct image orientation Silver-finished design specifically for RedCat telescopes Description The W...

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    CA$197.00 - CA$197.00
    CA$197.00
    CA$197.00 - CA$197.00
    CA$197.00
  • CA$156.00 - CA$156.00
    CA$156.00
    CA$156.00 - CA$156.00
    CA$156.00

    William Optics SPL 55° 12.5mm Eyepiece - 1.25"

    WO-E-SPL12.5

    1.25-inch eyepiece with 55° apparent field of view 12.5mm focal length for medium-high magnification viewing Description The W...

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    CA$156.00 - CA$156.00
    CA$156.00
    CA$156.00 - CA$156.00
    CA$156.00
  • CA$575.00 - CA$575.00
    CA$575.00
    CA$575.00 - CA$575.00
    CA$575.00

    William Optics STC Astro Duo-Narrowband Filter

    WO-YF-STC-ADN

    Dual-bandpass filter for astrophotography Optimized for H-alpha and OIII emission lines Description The William Optics STC Ast...

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    CA$575.00 - CA$575.00
    CA$575.00
    CA$575.00 - CA$575.00
    CA$575.00
  • CA$285.00 - CA$285.00
    CA$285.00
    CA$285.00 - CA$285.00
    CA$285.00

    William Optics STC Ultra Layer Astro Multispectra Filter - 48mm

    WO-YF-STC-M48

    Multi-bandpass filter for astrophotography 48mm thread-on design for easy attachment Description The William Optics STC Ultra ...

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    CA$285.00 - CA$285.00
    CA$285.00
    CA$285.00 - CA$285.00
    CA$285.00
  • CA$187.00 - CA$187.00
    CA$187.00
    CA$187.00 - CA$187.00
    CA$187.00

    William Optics SWAN 72° 40mm Eyepiece - 2"

    WO-E-SWA40
    1 in stock

    2-inch eyepiece with 72° apparent field of view 40mm focal length for wide-field, low-magnification viewing Description The Wi...

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    CA$187.00 - CA$187.00
    CA$187.00
    CA$187.00 - CA$187.00
    CA$187.00
  • CA$125.00 - CA$125.00
    CA$125.00
    CA$125.00 - CA$125.00
    CA$125.00

    William Optics SWAN 72° 9mm Eyepiece - 1.25"

    WO-E-SWA09

    1.25-inch eyepiece with 72° apparent field of view 9mm focal length for high-magnification, wide-field viewing Description The...

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    CA$125.00 - CA$125.00
    CA$125.00
    CA$125.00 - CA$125.00
    CA$125.00
  • CA$1,161.00 - CA$1,161.00
    CA$1,161.00
    CA$1,161.00 - CA$1,161.00
    CA$1,161.00

    William Optics WO x0.72 Reducer Flattener 8

    WO-P-FLAT8

    0.72x reducer/flattener for William Optics refractor telescopes Reduces focal length and corrects field curvature for improved astrophotogra...

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    CA$1,161.00 - CA$1,161.00
    CA$1,161.00
    CA$1,161.00 - CA$1,161.00
    CA$1,161.00
  • CA$995.00 - CA$995.00
    CA$995.00
    CA$995.00 - CA$995.00
    CA$995.00

    William Optics x0.8 Reducer Flattener 7A

    WO-P-FLAT7A

    0.8x reducer/flattener for William Optics refractor telescopes Reduces focal length while correcting field curvature Description ...

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    CA$995.00 - CA$995.00
    CA$995.00
    CA$995.00 - CA$995.00
    CA$995.00