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William Optics Redcat

  1. William Optics - MiniCat 51 WIFD f/3.5 Petzval Refractor Optical Tube Assembly - Red
    William Optics - MiniCat 51 WIFD f/3.5 Petzval Refractor Optical Tube Assembly - Red
    $898.00
    SKU: WIL-T-C-MINI-RD
    In Stock
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  2. William Optics - Redcat 91 f/4.9 WIFD Petzval Optical Tube Assembly - Black
    William Optics - Redcat 91 f/4.9 WIFD Petzval Optical Tube Assembly - Black
    $2,598.00
    SKU: WIL-T-C-91
    In Stock
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  3. William Optics Redcat 51 WIFD
    William Optics - Redcat 51 F/4.9 Petzval Refracting Telescope with WIFD - Version 3
    Special Price $858.00 Regular Price $898.00
    SKU: WIL-L-RC51RDIII
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  4. William Optics - RedCat 71 APO 350mm f/4.9 Optical Tube Assembly with WIFD
    William Optics - RedCat 71 APO 350mm f/4.9 Optical Tube Assembly with WIFD
    Special Price $1,698.00 Regular Price $1,798.00
    SKU: WIL-T-C-71RDII
    In Stock
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  5. William Optics Redcat 61 Telescope
    William Optics - Redcat 61 f/4.9 APO Refractor Optical Tube Assembly with WIFD
    Special Price $1,398.00 Regular Price $1,498.00
    SKU: WIL-T-C-61RD
    In Stock
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  6. William Optics - UltraCat 108 WIFD f/4.8 5 Element Petzval Optical Tube Assembly
    William Optics - UltraCat 108 WIFD f/4.8 5 Element Petzval Optical Tube Assembly
    $3,598.00
    SKU: WIL-T-C-108
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  7. William Optics - MiniCat 51 WIFD f/3.5 Petzval Refractor Optical Tube Assembly - Space Gray
    William Optics - MiniCat 51 WIFD f/3.5 Petzval Refractor Optical Tube Assembly - Space Gray
    $898.00
    SKU: WIL-T-C-MINI-SG
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  8. William Optics - Redcat 91 f/4.9 WIFD Petzval Optical Tube Assembly - Red
    William Optics - Redcat 91 f/4.9 WIFD Petzval Optical Tube Assembly - Red
    $2,598.00
    SKU: WIL-T-C-91-RD
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  9. William Optics Redcat 71
    William Optics - RedCat 71 APO 350mm f/4.9 Optical Tube Assembly
    $1,698.00
    SKU: WIL-T-C-71RD
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William Optics Gran Turismo

  1. William Optics - Gran Turismo 81 with Internal Focus Design (WIFD)
    William Optics - Gran Turismo 81 with Internal Focus Design (WIFD)
    $1,998.00
    SKU: WIL-T-GT-81RD-WIFD
    In Stock
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  2. William Optics - All New Gran Turismo 71 APO Refractor with Flattener - Red with Free Camera Angle Rotator and 32mm Guidescope Limited Time Offer
    William Optics - All New Gran Turismo 71 APO Refractor with Flattener - Red with Free Camera Angle Rotator and 32mm Guidescope Limited Time Offer
    $1,065.00
    SKU: WIL-A-F71GTII-RD-AP
    In Stock
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  3. William Optics - Gran Turismo 81 with Internal Focus Design (WIFD) - Space Gray
    William Optics - Gran Turismo 81 with Internal Focus Design (WIFD) - Space Gray
    $1,998.00
    SKU: WIL-T-GT-81SG-WIFD
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  4. William Optics - Gran Turismo 81 with Internal Focus Design (WIFD) - Gold
    William Optics - Gran Turismo 81 with Internal Focus Design (WIFD) - Gold
    $1,998.00
    SKU: WIL-T-GT-81GD-WIFD
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  5. William Optics - All New Gran Turismo 71 APO Refractor with Flattener - Gold with Free Camera Angle Rotator and 32mm Guidescope Limited Time Offer
    William Optics - All New Gran Turismo 71 APO Refractor with Flattener - Gold with Free Camera Angle Rotator and 32mm Guidescope Limited Time Offer
    $1,065.00
    SKU: WIL-A-F71GTII-AP
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  6. William Optics - All New Gran Turismo 71 APO Refractor - Red with Free Camera Angle Rotator Limited Time Offer
    William Optics - All New Gran Turismo 71 APO Refractor - Red with Free Camera Angle Rotator Limited Time Offer
    $933.00
    SKU: WIL-A-F71GTII-RD
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  7. William Optics - Gran Turismo 81 IV - Space Gray
    William Optics - Gran Turismo 81 IV - Space Gray
    Rating:
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    $1,568.00
    SKU: WIL-A-F81GTIVTG
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  8. William Optics - Gran Turismo 81 IV - Red
    William Optics - Gran Turismo 81 IV - Red
    $1,568.00
    SKU: WIL-A-F81GTIVRD
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  9. William Optics - Gran Turismo 81 IV - Gold
    William Optics - Gran Turismo 81 IV - Gold
    $1,538.00
    SKU: WIL-A-F81GTIVGD
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  10. William Optics - All New Gran Turismo 71 APO Refractor - Gold with Free Camera Angle Rotator Limited Time Offer
    William Optics - All New Gran Turismo 71 APO Refractor - Gold with Free Camera Angle Rotator Limited Time Offer
    $933.00
    SKU: WIL-A-F71GTII
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William Optics Zenithstar

  1. William Optics - Zenithstar 61II APO Refractor OTA - Red
    William Optics - Zenithstar 61II APO Refractor OTA - Red
    $599.00
    SKU: WIL-A-Z61IIRD
    In Stock
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  2. William Optics - Zenithstar 73 III APO Optical Tube with 2.5" RP Focuser - Red
    William Optics - Zenithstar 73 III APO Optical Tube with 2.5" RP Focuser - Red
    $730.00
    SKU: WIL-A-Z73IIIRD
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  3. William Optics - Zenithstar 61II APO Refractor OTA - Space Grey
    William Optics - Zenithstar 61II APO Refractor OTA - Space Grey
    Special Price $539.00 Regular Price $599.00
    SKU: WIL-A-Z61IITG
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  4. William Optics - Zenithstar 61II APO Refractor OTA - Gold
    William Optics - Zenithstar 61II APO Refractor OTA - Gold
    $599.00
    SKU: WIL-A-Z61IIGD
    In Stock
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  5. William Optics - Zenithstar 73 III APO Optical Tube with 2.5" RP Focuser (Gold)
    William Optics - Zenithstar 73 III APO Optical Tube with 2.5" RP Focuser (Gold)
    $730.00
    SKU: WIL-A-Z73IIIGD
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  6. William Optics - Zenithstar 81 APO Refractor OTA (Red)
    William Optics - Zenithstar 81 APO Refractor OTA (Red)
    $888.00
    SKU: WIL-A-Z81RD
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  7. William Optics - Zenithstar 81 APO Refractor OTA (Gold)
    William Optics - Zenithstar 81 APO Refractor OTA (Gold)
    $888.00
    SKU: WIL-A-Z81GD
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William Optics Fluorostar FLT

  1. William Optics - Fluorostar 132 IV OTA - Red
    William Optics - Fluorostar 132 IV OTA - Red
    $4,378.00
    SKU: WIL-A-F132RDIV-RP37
    In Stock
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  2. William Optics - Fluorostar FLT 132mm f/6.9 Optical Tube Assembly with 3.5" Feathertouch Focuser (Red) - Version IV
    William Optics - Fluorostar FLT 132mm f/6.9 Optical Tube Assembly with 3.5" Feathertouch Focuser (Red) - Version IV
    $5,668.00
    SKU: WIL-A-F132RDIV-FT
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  3. William Optics - Fluorostar FLT 132mm f/6.9 Optical Tube Assembly with 3.5" Feathertouch Focuser (Gold) - Version IV
    William Optics - Fluorostar FLT 132mm f/6.9 Optical Tube Assembly with 3.5" Feathertouch Focuser (Gold) - Version IV
    $5,668.00
    SKU: WIL-A-F132GDIV-FT
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  4. William Optics - FLT156 f/7.8 OTA FPL53 Triplet APO with 3.7" RP Focuser - Space Gray
    William Optics - FLT156 f/7.8 OTA FPL53 Triplet APO with 3.7" RP Focuser - Space Gray
    $7,398.00
    SKU: WIL-A-F156TG-RP37
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  5. William Optics - Fluorostar 132 IV OTA - Gold
    William Optics - Fluorostar 132 IV OTA - Gold
    $4,378.00
    SKU: WIL-A-F132GDIV-RP37
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  6. William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Space Grey)
    William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Space Grey)
    $3,298.00
    SKU: WIL-A-F120TG-RP33
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  7. William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Gold)
    William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Gold)
    $3,298.00
    SKU: WIL-A-F120GD-RP33
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  8. William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Red)
    William Optics - Fluorostar FLT 120mm f/6.5 Optical Tube Assembly with 3.3" RP Focuser (Red)
    $3,298.00
    SKU: WIL-A-F120RD-RP33
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  9. William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Space Gray)
    William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Space Gray)
    $1,998.00
    SKU: WIL-T-FLT-91SG-RP33
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  10. William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Red)
    William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Red)
    $1,998.00
    SKU: WIL-T-FLT-91RD-RP33
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  11. William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Gold)
    William Optics - Fluorostar FLT91 Apochromatic Optical Tube with 3.3" Rack and Pinion Focuser (Gold)
    $1,998.00
    SKU: WIL-T-FLT-91GD-RP33
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  12. William Optics - Fluorostar 156 APO Refractor OTA with 3.5" FeatherTouch Focuser (Red)
    William Optics - Fluorostar 156 APO Refractor OTA with 3.5" FeatherTouch Focuser (Red)
    $8,198.00
    SKU: WIL-A-F156RD-FT
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  13. William Optics - Fluorostar 156 APO Refractor OTA with 3.5" FeatherTouch Focuser - Gold
    William Optics - Fluorostar 156 APO Refractor OTA with 3.5" FeatherTouch Focuser - Gold
    $8,198.00
    SKU: WIL-A-F156GD-FT
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  14. William Optics - Fluorostar 156 APO Refractor OTA with 3.5 FeatherTouch Focuser (Blue)
    William Optics - Fluorostar 156 APO Refractor OTA with 3.5 FeatherTouch Focuser (Blue)
    $7,128.00
    SKU: WIL-A-F156BU-FT
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  15. William Optics - Fluorostar 132 APO Refractor OTA with 3.5" FeatherTouch Focuser - Red
    William Optics - Fluorostar 132 APO Refractor OTA with 3.5" FeatherTouch Focuser - Red
    $5,168.00
    SKU: WIL-A-F132IIIRD-FTR
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  16. William Optics - Fluorostar 132 APO Refractor OTA with 3.5" FeatherTouch Focuser - Gold
    William Optics - Fluorostar 132 APO Refractor OTA with 3.5" FeatherTouch Focuser - Gold
    $5,168.00
    SKU: WIL-A-F132IIIGD-FTR
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  17. William Optics - Fluorostar 156 APO Refractor OTA with 3.7RP Focuser Red
    William Optics - FLT156 f/7.8 OTA FPL53 Triplet APO with 3.7" RP Focuser - Red
    $7,398.00
    SKU: WIL-A-F156RD-RP37
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  18. William Optics - Fluorostar 156 APO Refractor OTA with 3.7RP Focuser - Gold
    William Optics - FLT156 f/7.8 OTA FPL53 Triplet APO with 3.7" RP Focuser - Gold
    $7,398.00
    SKU: WIL-A-F156GD-RP37
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  19. William Optics - Fluorostar 156 APO Refractor OTA with 3.7RP Focuser (Blue)
    William Optics - Fluorostar 156 APO Refractor OTA with 3.7RP Focuser (Blue)
    $6,578.00
    SKU: WIL-A-F156BU-RP37
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William Optics Accessories

  1. William Optics - All New Slide-Base UniGuide 32mm Scope - Red
    William Optics - All New Slide-Base UniGuide 32mm Scope - Red
    $114.00
    SKU: WIL-M-G32PB-RD
    In Stock
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  2. William Optics - Redcat Handle Bar
    William Optics - Redcat Handle Bar
    $53.00
    SKU: WIL-M-HCRC-RD
    In Stock
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  3. William Optics - 48mm T Mount for Sony E - Black
    William Optics - 48mm T Mount for Sony E - Black
    $45.00
    SKU: WIL-TM-SN-E-M48
    In Stock
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  4. William Optics - Vixen Style Finder Mounting Bracket
    William Optics - Vixen Style Finder Mounting Bracket
    $64.00
    SKU: WIL-M-FB50-B
    In Stock
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  5. William Optics - iOptron Skyguider Pro DEC Adapter
    William Optics - iOptron Skyguider Pro DEC Adapter
    $34.00
    SKU: WIL-M-IOPSG-SPM
    In Stock
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  6. William Optics - High Precision “COPPER“ 48mm T-Ring for Canon EOS Full Frame Cameras
    William Optics - High Precision “COPPER“ 48mm T-Ring for Canon EOS Full Frame Cameras
    $90.00
    SKU: WIL-YE-TR-BR48-C
    In Stock
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  7. William Optics - 1.25" RedCat Erecting Prism for RedCat 51 - Silver Version
    William Optics - 1.25" RedCat Erecting Prism for RedCat 51 - Silver Version
    $137.00
    SKU: WIL-D-EP90-125-RC51-SL
    In Stock
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  8. William Optics - 120mm Saddle Handle Bar
    William Optics - 120mm Saddle Handle Bar
    $44.00
    SKU: WIL-M-HC120BL
    In Stock
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  9. William Optics - Vixen Style Mounting Base
    William Optics - Vixen Style Mounting Base
    $22.00
    SKU: WIL-BAFM-ST001
    In Stock
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  10. William Optics - M63 (Male) to M48 (Male) Photo Adapter
    William Optics - M63 (Male) to M48 (Male) Photo Adapter
    $64.00
    SKU: WIL-P-PAM63-48
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  11. William Optics - Longer Adjusting Adapter for FLAT68III, FLAT7A
    William Optics - Longer Adjusting Adapter for FLAT68III, FLAT7A
    $49.00
    SKU: WIL-AD-M80-45-M48
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  12. William Optics - 1.25" Rotolock Adapter - Red
    William Optics - 1.25" Rotolock Adapter - Red
    $53.00
    SKU: WIL-F-ROTO-A2-125RDII
    In Stock
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  13. William Optics - Dielectric 1.25" 90 Degree Diagonal
    William Optics - Dielectric 1.25" 90 Degree Diagonal
    $110.00
    SKU: WIL-D-125D-C-DB
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  14. William Optics - 2 x0.8 Reducer APO Adjustable Field Flattener with M63 threads for GT71/GT81/Z103/Z81 (T-Mount NOT Included)
    William Optics - 2 x0.8 Reducer APO Adjustable Field Flattener with M63 threads for GT71/GT81/Z103/Z81 (T-Mount NOT Included)
    $229.00
    SKU: WIL-P-FLAT6AIII
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  15. William Optics - High precision “COPPER“ T Ring for Nikon Full Frame Cameras
    William Optics - High precision “COPPER“ T Ring for Nikon Full Frame Cameras
    $90.00
    SKU: WIL-YE-TR-BR48-N
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  16. William Optics - T-Mount for Nikon Z Mirrorless Cameras
    William Optics - T-Mount for Nikon Z Mirrorless Cameras
    $56.00
    SKU: WIL-TM-NK-Z-M48
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  17. William Optics - DSD 110 Plate (Red)
    William Optics - DSD 110 Plate (Red)
    $36.00
    SKU: WIL-M-PRC110RD
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  18. William Optics - M48 Nikon T-Ring - Black
    William Optics - M48 Nikon T-Ring - Black
    $34.00
    SKU: WIL-TM-NK-F-M48
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  19. William Optics - High Latitude WO Vixen Style Base Mount
    William Optics - High Latitude WO Vixen Style Base Mount
    $229.00
    SKU: WIL-YG-IO-SG01H-RD
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  20. William Optics - Extension Bar for iOptron SkyGuider Pro
    William Optics - Extension Bar for iOptron SkyGuider Pro
    $34.00
    SKU: WIL-M-IO-EB20RD
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About William Optics

William Optics is renowned for developing and marketing very portable yet sharp optical tubes that are mainly tailored for amateur astrophotography users who want a small imaging setup for the best resolution.  Along with their high quality accessories and range of camera adapters, these telescopes are excellent to take on the go!