Skip to content
Australia's best William Optics & Explore Scientific distributor with local stock
Australia's best William Optics & Explore Scientific distributor with local stock

Optical Accessories

All the general optical accessories for your telescope.

Filters

  • 1.25" LRGB Filter set for telescope Deep Sky & Planetary Astronomy imaging - ProAstroz
    1.25" LRGB Filter set for telescope Deep Sky & Planetary Astronomy imaging - ProAstroz
    Original price $139.00 - Original price $139.00
    Original price $139.00
    $139.00
    $139.00 - $139.00
    Current price $139.00

    1.25" LRGB Filter set for telescope Deep Sky & Planetary Astronomy imaging

    ProAstroz

    This filter set is the OEM (Original Equipment Manufacturer) version of the ZWO 1.25" filters (SKU: ZWO LRGB1.25NEW): in practice this means they ...

    View full details
    Original price $139.00 - Original price $139.00
    Original price $139.00
    $139.00
    $139.00 - $139.00
    Current price $139.00
  • Artificial Star Generator for Telescopes to perfect collimation - ProAstroz
    Artificial Star Generator for Telescopes to perfect collimation - ProAstroz
    Original price $75.00 - Original price $75.00
    Original price $75.00
    $75.00
    $75.00 - $75.00
    Current price $75.00

    Artificial Star Generator for Telescopes to perfect collimation

    ProAstroz

      Artificial Star Generator for Telescopes to perfect collimation Perfect the collimation of your instrument at any time, during the day without w...

    View full details
    Original price $75.00 - Original price $75.00
    Original price $75.00
    $75.00
    $75.00 - $75.00
    Current price $75.00
  • Original price $119.00 - Original price $119.00
    Original price $119.00
    $119.00
    $119.00 - $119.00
    Current price $119.00

    FLAT68III longer adjusting adapter for WIFD GT81-M48

    ProAstroz

    To use this adapter, simply unscrew the original end adapter that terminates in the M48 male thread on the flattener and replace it with this longe...

    View full details
    Original price $119.00 - Original price $119.00
    Original price $119.00
    $119.00
    $119.00 - $119.00
    Current price $119.00
  • OEM Meade Series 4000 F6.3 Focal Reducer / Corrector Field Flattener telescope - ProAstroz
    OEM Meade Series 4000 F6.3 Focal Reducer / Corrector Field Flattener telescope - ProAstroz
    Original price $139.00 - Original price $139.00
    Original price $139.00
    $139.00
    $139.00 - $139.00
    Current price $139.00

    OEM Meade Series 4000 F6.3 Focal Reducer / Corrector Field Flattener telescope

    ProAstroz

    This F6.3 Focal Reducer / Corrector design is a four-element, fully multicoated focal reducer and field flattener. It effectively reduces the foca...

    View full details
    Original price $139.00 - Original price $139.00
    Original price $139.00
    $139.00
    $139.00 - $139.00
    Current price $139.00
  • Original price $119.00 - Original price $119.00
    Original price $119.00
    $335.00
    $335.00 - $335.00
    Current price $335.00

    Rotolock Visual Back Adapter 3.5-2 for WIFD & FLT

    ProAstroz

    New 3.5" RotoLock. Suitable for WIFD GT81 (visual) & FLT 3.5" Focuser.Ultra smooth for perfect centering lock.

    Original price $119.00 - Original price $119.00
    Original price $119.00
    $335.00
    $335.00 - $335.00
    Current price $335.00
  • William Optics FLAT61A Flattener - ProAstroz
    William Optics FLAT61A Flattener - ProAstroz
    Sold out - more on the way!
    Original price $369.00
    Original price $369.00 - Original price $369.00
    Original price $369.00
    Current price $319.00
    $319.00 - $319.00
    Current price $319.00

    William Optics FLAT61A Flattener

    ProAstroz

    New Adjustable Dedicated Flattener for William Optics ZS61Optically-matched 1:1 Flattener for ZS61 APOIntegrated camera rotator.Internal thread acc...

    View full details
    Original price $369.00
    Original price $369.00 - Original price $369.00
    Original price $369.00
    Current price $319.00
    $319.00 - $319.00
    Current price $319.00
    Sold out - more on the way!
  • William Optics FLAT61R Flattener/Reducer 0.8X - ProAstroz
    William Optics FLAT61R Flattener/Reducer 0.8X - ProAstroz
    Sold out - more on the way!
    Original price $479.00 - Original price $479.00
    Original price $479.00
    $479.00
    $479.00 - $479.00
    Current price $479.00

    William Optics FLAT61R Flattener/Reducer 0.8X

    ProAstroz

    New 0.8x Adjustable Dedicated Reducer Flattener for William Optics ZS61Integrated camera rotator.Internal thread accepts 2" astronomy filters.Requi...

    View full details
    Original price $479.00 - Original price $479.00
    Original price $479.00
    $479.00
    $479.00 - $479.00
    Current price $479.00
    Sold out - more on the way!
  • William Optics FLAT68III Flattener - ProAstroz
    William Optics FLAT68III Flattener - ProAstroz
    Original price $1,049.00 - Original price $1,049.00
    Original price $1,049.00
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00

    William Optics FLAT68III Flattener

    ProAstroz

    New William Optics Adjustable Flattener 68IIIOptimised for William Optics refractors and designed to cover full frame sensors with a 44.4mm fully i...

    View full details
    Original price $1,049.00 - Original price $1,049.00
    Original price $1,049.00
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00
  • William Optics FLAT6AIII Flattener/Reducer 0.8X - ProAstroz
    William Optics FLAT6AIII Flattener/Reducer 0.8X - ProAstroz
    Original price $355.00 - Original price $355.00
    Original price $355.00
    $355.00
    $355.00 - $355.00
    Current price $355.00

    William Optics FLAT6AIII Flattener/Reducer 0.8X

    ProAstroz

    Adjustable Reducer / Flattener for William Optics GT71, GT81, Z81, Z103 TelescopesThis elegantly designed 2" reducer / flattener has been designed ...

    View full details
    Original price $355.00 - Original price $355.00
    Original price $355.00
    $355.00
    $355.00 - $355.00
    Current price $355.00
  • William Optics FLAT6AIII for FLT91 - Flattener/Reducer 0.8X - ProAstroz
    Save $90.00 Save $0.00
    Original price $459.00
    Original price $459.00 - Original price $459.00
    Original price $459.00
    Current price $369.00
    $369.00 - $369.00
    Current price $369.00

    William Optics FLAT6AIII for FLT91 & FLT120 - Flattener/Reducer 0.8X

    ProAstroz

    Adjustable Reducer / Flattener for William Optics FLT91 & FLT120 TelescopesThis elegantly designed 2" reducer / flattener has been designed to ...

    View full details
    Original price $459.00
    Original price $459.00 - Original price $459.00
    Original price $459.00
    Current price $369.00
    $369.00 - $369.00
    Current price $369.00
    Save $90.00 Save $0.00
  • William Optics FLAT73A Flattener - ProAstroz
    William Optics FLAT73A Flattener - ProAstroz
    Original price $369.00 - Original price $369.00
    Original price $369.00
    $369.00
    $369.00 - $369.00
    Current price $369.00

    William Optics FLAT73A Flattener

    ProAstroz

    New Adjustable Dedicated Flattener 73A for William Optics ZS73Optically-matched 1:1 Flattener for ZS73 APOSuitable for use with full frame sensors....

    View full details
    Original price $369.00 - Original price $369.00
    Original price $369.00
    $369.00
    $369.00 - $369.00
    Current price $369.00
  • William Optics FLAT7A 0.8x Flattener - ProAstroz
    William Optics FLAT7A 0.8x Flattener - ProAstroz
    Original price $1,049.00 - Original price $1,049.00
    Original price $1,049.00
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00

    William Optics FLAT7A 0.8x Flattener

    ProAstroz

    New William Optics Adjustable Flattener Reducer 0.8x FLAT7AOptimised for William Optics refractors and designed to cover full frame sensors with a ...

    View full details
    Original price $1,049.00 - Original price $1,049.00
    Original price $1,049.00
    $1,049.00
    $1,049.00 - $1,049.00
    Current price $1,049.00