Optical Accessories
Filters
- Antlia (20)
- APM (32)
- Askar (16)
- Astrodon (2)
- Baader Planetarium (104)
- Celestron (61)
- Chroma (35)
- David Astro (11)
- Daystar Filters (1)
- Explore Scientific (60)
- Lumicon (1)
- Lunt Solar Systems (9)
- Optolong (8)
- QHYCCD (1)
- SBIG (2)
- SharpStar Optics (8)
- Sky-Watcher (10)
- Starizona (2)
- Starlight Instruments (2)
- TS-Optics (6)
- William Optics (22)
- ZWO (17)
-
Original price CA$1,156.00 - Original price CA$1,156.00Original priceCA$1,156.00CA$1,156.00 - CA$1,156.00Current price CA$1,156.00| /
Starlight Instruments SIPS Coma Corrector
SI-SIPSStarlight Instruments is proud to introduce a new Coma Corrector called the Starlight Integrated Paracorr System (referred to as SIPS hereafter). ...
View full detailsOriginal price CA$1,156.00 - Original price CA$1,156.00Original priceCA$1,156.00CA$1,156.00 - CA$1,156.00Current price CA$1,156.00| / -
Original price CA$79.00 - Original price CA$79.00Original priceCA$79.00CA$79.00 - CA$79.00Current price CA$79.00| /
TS-Optics 0.5x Focal reducer - 1.25"
TS-TSRED051The TS optics 0.5x reducer shortens the focal lengths of the telescope by 50% and doubles the lens speed and field of view. This advantage can be u...
View full detailsOriginal price CA$79.00 - Original price CA$79.00Original priceCA$79.00CA$79.00 - CA$79.00Current price CA$79.00| / -
Original price CA$286.00 - Original price CA$286.00Original priceCA$286.00CA$286.00 - CA$286.00Current price CA$286.00| /
TS-Optics 0.67x Reducer for RC Telescopes - 2"
TS-CCD47The 2" CCD compressor reduces the focal length of telescopes with the factor 0.67x, thus allowing significantly shorter exposure times.♦ The focal ...
View full detailsOriginal price CA$286.00 - Original price CA$286.00Original priceCA$286.00CA$286.00 - CA$286.00Current price CA$286.00| / -
Original price CA$382.00 - Original price CA$382.00Original priceCA$382.00CA$382.00 - CA$382.00Current price CA$382.00| /
TS-Optics 0.79x Photoline Reducer Corrector - 2"
TS-TSred279♦ Reduction of the focal length 0.79x - exposure time goes to 62%♦ 3-element design with ED element for very good field correction♦ Easy telescope ...
View full detailsOriginal price CA$382.00 - Original price CA$382.00Original priceCA$382.00CA$382.00 - CA$382.00Current price CA$382.00| / -
Original price CA$299.00 - Original price CA$299.00Original priceCA$299.00CA$299.00 - CA$299.00Current price CA$299.00| /
TS-Optics 1.0x Flattener and Field Corrector - 2"
TS-TSFLAT2♦ Suitable for all 2" focusers, the corrector is completely sunken into the focuser♦ Very good results with all popular refractors and apos of at l...
View full detailsOriginal price CA$299.00 - Original price CA$299.00Original priceCA$299.00CA$299.00 - CA$299.00Current price CA$299.00| / -
Original price CA$209.00 - Original price CA$209.00Original priceCA$209.00CA$209.00 - CA$209.00Current price CA$209.00| /
TS-Optics 1.0x M48 Flattener and Field Corrector - 2"
TS-WiflatM48♦ Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat, ...)♦ Connection telescope side 2" barrel with filter thr...
View full detailsOriginal price CA$209.00 - Original price CA$209.00Original priceCA$209.00CA$209.00 - CA$209.00Current price CA$209.00| / -
Original price CA$209.00 - Original price CA$209.00Original priceCA$209.00CA$209.00 - CA$209.00Current price CA$209.00| /
TS-Optics 1.0x T2 Flattener and Field Corrector - 2"
TS-WiflatT2♦ Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat, ...)♦ Connection telescope side 2" barrel with filter thre...
View full detailsOriginal price CA$209.00 - Original price CA$209.00Original priceCA$209.00CA$209.00 - CA$209.00Current price CA$209.00| / -
Original price CA$59.00 - Original price CA$59.00Original priceCA$59.00CA$59.00 - CA$59.00Current price CA$59.00| /
William Optics 2x Barlow Nosepiece for Binoviewer
WO-E-BINO-B21 in stock2x magnification Barlow lens specifically designed for binoviewers Increases magnification while maintaining focus with binoviewer setups ...
View full detailsOriginal price CA$59.00 - Original price CA$59.00Original priceCA$59.00CA$59.00 - CA$59.00Current price CA$59.00| / -
Original price CA$124.00 - Original price CA$124.00Original priceCA$124.00CA$124.00 - CA$124.00Current price CA$124.00| /
William Optics 45° Erecting Prism - 1.25"
WO-D-EP12545-degree erecting prism for 1.25" telescope eyepieces Provides correct image orientation for terrestrial and astronomical viewing Des...
View full detailsOriginal price CA$124.00 - Original price CA$124.00Original priceCA$124.00CA$124.00 - CA$124.00Current price CA$124.00| / -
Original price CA$130.00 - Original price CA$130.00Original priceCA$130.00CA$130.00 - CA$130.00Current price CA$130.00| /
William Optics 90° Erect Prism - 1.25"
WO-D-EP90-125II90-degree erecting prism for 1.25" telescope eyepieces Provides correct image orientation for terrestrial and astronomical viewing Des...
View full detailsOriginal price CA$130.00 - Original price CA$130.00Original priceCA$130.00CA$130.00 - CA$130.00Current price CA$130.00| / -
Original price CA$149.00 - Original price CA$149.00Original priceCA$149.00CA$149.00 - CA$149.00Current price CA$149.00| /
William Optics 99% Dielectric Dura Bright Diagonal - 1.25"
WO-D-125D-C-DBHigh-quality 1.25" diagonal for refractor and catadioptric telescopes 99% reflectivity dielectric coating for maximum light transmission ...
View full detailsOriginal price CA$149.00 - Original price CA$149.00Original priceCA$149.00CA$149.00 - CA$149.00Current price CA$149.00| / -
Original price CA$213.00 - Original price CA$213.00Original priceCA$213.00CA$213.00 - CA$213.00Current price CA$213.00| /
William Optics 99% Dielectric Dura Bright Diagonal - 2"
WO-D-DIG2D-C-DB-T2 in stockHigh-quality 2" diagonal for refractor and catadioptric telescopes 99% reflectivity dielectric coating for maximum light transmission ...
View full detailsOriginal price CA$213.00 - Original price CA$213.00Original priceCA$213.00CA$213.00 - CA$213.00Current price CA$213.00| / -
Original price CA$285.00 - Original price CA$285.00Original priceCA$285.00CA$285.00 - CA$285.00Current price CA$285.00| /
William Optics Adjustable Flat61 for Z61
WO-P-FLAT61A1 in stockAdjustable field flattener specifically designed for the William Optics Z61 telescope Improves edge-to-edge sharpness for astrophotography w...
View full detailsOriginal price CA$285.00 - Original price CA$285.00Original priceCA$285.00CA$285.00 - CA$285.00Current price CA$285.00| / -
Original price CA$309.00 - Original price CA$309.00Original priceCA$309.00CA$309.00 - CA$309.00Current price CA$309.00| /
William Optics Adjustable Flat6AIII
WO-P-FLAT6AIII3 in stockVersatile field flattener for William Optics refractor telescopes Adjustable design for optimal performance with various camera setups ...
View full detailsOriginal price CA$309.00 - Original price CA$309.00Original priceCA$309.00CA$309.00 - CA$309.00Current price CA$309.00| / -
Original price CA$396.00 - Original price CA$396.00Original priceCA$396.00CA$396.00 - CA$396.00Current price CA$396.00| /
William Optics Adjustable Flat6AIII for FLT91
WO-P-FLAT6AIII-M921 in stock0.8x reducer For William Optics FLT91 refractor Description The William Optics Adjustable Flat6AIII for FLT91 is a special editio...
View full detailsOriginal price CA$396.00 - Original price CA$396.00Original priceCA$396.00CA$396.00 - CA$396.00Current price CA$396.00| / -
Original price CA$309.00 - Original price CA$309.00Original priceCA$309.00CA$309.00 - CA$309.00Current price CA$309.00| /
William Optics Adjustable Flat73A for Z73
WO-P-FLAT73A1 in stockImproves edge-to-edge sharpness for astrophotography 43mm image circle Adjustable design 66.2mm back focus Description Specifications In the Bo...
View full detailsOriginal price CA$309.00 - Original price CA$309.00Original priceCA$309.00CA$309.00 - CA$309.00Current price CA$309.00| / -
Original price CA$386.00 - Original price CA$386.00Original priceCA$386.00CA$386.00 - CA$386.00Current price CA$386.00| /
William Optics Adjustable Reducer Flattener Flat61R for Z61
WO-P-FLAT61RAdjustable reducer and field flattener for William Optics Z61 telescope Improves image sharpness and reduces distortion Description ...
View full detailsOriginal price CA$386.00 - Original price CA$386.00Original priceCA$386.00CA$386.00 - CA$386.00Current price CA$386.00| / -
Original price CA$386.00 - Original price CA$386.00Original priceCA$386.00CA$386.00 - CA$386.00Current price CA$386.00| /
William Optics Adjustable Reducer Flattener Flat73R for Z73
WO-P-FLAT73RAdjustable reducer and field flattener for William Optics Z73 telescope Improves image sharpness and reduces distortion Description ...
View full detailsOriginal price CA$386.00 - Original price CA$386.00Original priceCA$386.00CA$386.00 - CA$386.00Current price CA$386.00| / -
Original price CA$419.00 - Original price CA$419.00Original priceCA$419.00CA$419.00 - CA$419.00Current price CA$419.00| /
William Optics Binoviewer Complete Package
WO-E-BINO-P5.0 / 5.0
1 Review
Enhances visual astronomy with comfortable two-eye viewing Complete package includes binoviewer, eyepieces, and accessories Descriptio...
View full detailsOriginal price CA$419.00 - Original price CA$419.00Original priceCA$419.00CA$419.00 - CA$419.00Current price CA$419.00| / -
Original price CA$135.00 - Original price CA$135.00Original priceCA$135.00CA$135.00 - CA$135.00Current price CA$135.00| /
William Optics CatEye 60° 10mm - 1.25"
WO-E-CE1060° apparent field of view 10mm focal length for medium-high magnification Description The William Optics CatEye 60° 10mm - 1....
View full detailsOriginal price CA$135.00 - Original price CA$135.00Original priceCA$135.00CA$135.00 - CA$135.00Current price CA$135.00| / -
Original price CA$886.00 - Original price CA$886.00Original priceCA$886.00CA$886.00 - CA$886.00Current price CA$886.00| /
William Optics Flattener 68III
WO-P-FLAT68IIIDesigned specifically for William Optics 68mm f/6 refractor telescopes Corrects field curvature for improved edge-to-edge sharpness De...
View full detailsOriginal price CA$886.00 - Original price CA$886.00Original priceCA$886.00CA$886.00 - CA$886.00Current price CA$886.00| / -
Original price CA$185.00 - Original price CA$185.00Original priceCA$185.00CA$185.00 - CA$185.00Current price CA$185.00| /
William Optics RedCat Erecting Prism - 1.25" Silver Version
WO-D-EP90-125-RC51-SL1.25" erecting prism for correct image orientation Silver-finished design specifically for RedCat telescopes Description The W...
View full detailsOriginal price CA$185.00 - Original price CA$185.00Original priceCA$185.00CA$185.00 - CA$185.00Current price CA$185.00| / -
Original price CA$147.00 - Original price CA$147.00Original priceCA$147.00CA$147.00 - CA$147.00Current price CA$147.00| /
William Optics SPL 55° 12.5mm Eyepiece - 1.25"
WO-E-SPL12.51.25-inch eyepiece with 55° apparent field of view 12.5mm focal length for medium-high magnification viewing Description The W...
View full detailsOriginal price CA$147.00 - Original price CA$147.00Original priceCA$147.00CA$147.00 - CA$147.00Current price CA$147.00| / -
Original price CA$539.00 - Original price CA$539.00Original priceCA$539.00CA$539.00 - CA$539.00Current price CA$539.00| /
William Optics STC Astro Duo-Narrowband Filter
WO-YF-STC-ADNDual-bandpass filter for astrophotography Optimized for H-alpha and OIII emission lines Description The William Optics STC Ast...
View full detailsOriginal price CA$539.00 - Original price CA$539.00Original priceCA$539.00CA$539.00 - CA$539.00Current price CA$539.00| /