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Telescope Accessories & Parts

Items 1 - 25 of 153
William Optics 2" Dura Bright Dielectric SCT Diagonal

William Optics 2" Dura Bright Dielectric SCT Diagonal - D-DIG2D-C-DB-SCT

SKU: WYO-D-DIG2D-C-DB-SCT
  • Diagonal Type: Mirror Diagonal
  • Diagonal Size - Eyepiece Side: 2" Barrel
  • Diagonal Size - Telescope Side: SCT Threads
  • Includes Eyepiece Adapter: Yes, 2" to 1.25"
  • Optics Type and/or Coatings: DuraBright Coatings
$158.00
William Optics Soft Carry Case with No Foam for GTF81 and GT81 Refractors

William Optics Soft Carry Case for GTF81 and GT81 - No Foam - BG1-P002

SKU: WYO-BG1-P002
  • Case/Cover Dimensions (LxWxH): 20.55" x 7" x 13.25" - External
  • Known to Fit: William Optics GTF81 and GT81 Telescopes
$58.00
William Optics Soft Carry Case for FLT98, FLT110, GT102, & GTF102 - No Foam

William Optics Soft Carry Case for FLT98, FLT110, GT102, GTF102 - No Foam - BG1-P001

SKU: WYO-BG1-P001
  • Case/Cover Dimensions (LxWxH): 30.315" x 13.7795" x 9.44882" (770mm x 350mm x 240mm) - External
  • Known to Fit: William Optics FLT98, FLT110, GT102, GTF102 Telescopes
$168.00
William Optics 1.25" Dielectric Diagonal with Carbon Fiber Side Plates

William Optics 1.25" Dielectric Diagonal W/ Carbon Fiber Plates - D-125D-C-DB

SKU: WYO-D-125D-C-DB
  • Diagonal Type: Mirror Diagonal
  • Diagonal Size - Eyepiece Side: 1.25" Barrel
  • Diagonal Size - Telescope Side: 1.25" Barrel
  • Optics Type and/or Coatings: Dielectric Coatings
$95.00
William Optics 45º Erect Prism - 1.25"

William Optics 1.25" 45° Erect Prism - D-EP125

SKU: WYO-D-EP125
  • Diagonal Type: Correct/Erect Image
  • Diagonal Size - Eyepiece Side: 1.25" Barrel
  • Diagonal Size - Telescope Side: 1.25" Barrel
$80.00
William Optics 2x Barlow Nosepiece for Binoviewers - 1.25"

William Optics 1.25" 2x Barlow Nosepiece for Binoviewers - E-BINO-B2

SKU: WYO-E-BINO-B2
  • Using this Barlow nosepiece will double the power of the eyepieces used with the Binoviewers.

  • The barrel of this William Optics Barlow is 1.25".

  • William Optics' Barlow Nosepiece will screw into 1.25" eyepieces and binoviewers.

  • Though not included, this 2x Barlow nosepiece can be used in conjunction with an extender.
$38.00
William Optics Binoviewer Package with Eyepieces & Barlow

William Optics Binoviewer W/Eyepieces & Barlow Nosepiece - E-BINO-P

SKU: WYO-E-BINO-P
  • For finetuning this William Optics Binoviewer has eyepiece focus adjustment.

  • This WO binoviewer has fully-multi coated optical elements.

  • Included with this Binoviewer are two William Optics 20 mm, 1.25" eyepieces.

  • The use of non-marring compression rings protect the inserted eyepieces.
$268.00
William Optics 12.5 mm Super Planetary Long Relief Eyepiece

William Optics 12.5 mm Super Planetary Long Eye Relief Eyepiece - E-SPL125

SKU: WYO-E-SPL125
  • Focal Length: 12.5mm
  • Apparent Field of View: 55
$108.00

William Optics 48mm T mount for Fuji FX - Space Gray - YE-TR-M48FX-TG

SKU: WYO-YE-TR-M48FX-TG
  • DSLR, SLR or Mirrorless Adapters by Brand: Fuji
  • Threads: 48 mm T-Mount
  • Construction Material: CNC-Machined Aluminum
$39.00

William Optics Dura Bright 2" Carbon Dielectric Diagonal - D-DIG2D-C-DB-T

SKU: WYO-D-DIG2D-C-DB-T
  • Diagonal Type: Mirror Diagonal
  • Diagonal Size - Eyepiece Side: 2" Barrel
  • Diagonal Size - Telescope Side: 2" Barrel
  • Includes Eyepiece Adapter: Yes, 2" to 1.25"
  • Optics Type and/or Coatings: Dielectric Coatings
$139.00

William Optics 0.8x Reducer/Flattener - P-FLAT7A

SKU: WYO-P-FLAT7A
  • This William Optics 0.8x reducer/flattener is adjustable for optimum back focus.
  • Adjustment depends on the William Optics refractor with which the flattener is used.
  • This flattner is meant to work with the FLT132, FLT156, GT102, GT153, and the Z126.
  • The FLAT7A is compatible with several types of CCD and CMOS cameras.
  • The flattener is produced with Ohara optical glass.
$598.00

William Optics Cat Series Saddle Handle Bar - Space Gray - M-HCRC-TG

SKU: WYO-M-HCRC-TG
  • Type of Mounting Hardware: Mount Adapters, Stalks & Accessories
  • Color: Space Gray
  • Telescope Compatibility: RedCat, WhiteCat, SpaceCat
  • Ring/GuideScope Compatibility: WO UniGuide, Vixen Style Guide Scopes
$45.00

William Optics Cat Series Saddle Handle Bar - Red - M-HCRC-RD

SKU: WYO-M-HCRC-RD
  • Type of Mounting Hardware: Mount Adapters, Stalks & Accessories
  • Color: Red
  • Telescope Compatibility: RedCat, WhiteCat, SpaceCat
  • Ring/GuideScope Compatibility: WO UniGuide, Vixen Style Guide Scopes
$45.00

William Optics Cat Series Saddle Handle Bar - Black - M-HCRC-BL

SKU: WYO-M-HCRC-BL
  • Type of Mounting Hardware: Mount Adapters, Stalks & Accessories
  • Color: Black
  • Telescope Compatibility: RedCat, WhiteCat, SpaceCat
  • Ring/GuideScope Compatibility: WO UniGuide, Vixen Style Guide Scopes
$45.00

William Optics Cat Series Mounting Ring - M-MR50RC-BL

SKU: WYO-M-MR50RC-BL
  • Type of Mounting Hardware: Rings Only
  • Ring Size: 50 mm (1.9")
  • Solid or Split (Cradle) Ring: Solid
$39.00

William Optics 800 mm Mortar Tri-Pier - Red - YG-MT-800-BR

SKU: WYO-YG-MT-800-BR
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is either 800 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
Free shipping Free shipping
$598.00

William Optics Image Plane Tilt Adjuster for Cat51 Upgrade - M-FD-RC51

SKU: WYO-M-FD-RC51
  • Made for Cat Series Refractors
  • Comes with a M48 Filter Thread
  • Used as an upgrade for first generation Cat Series Scopes
  • Includes push screws and pull screws
$45.00
$45.00

William Optics 1.25" RotoLock Adapter - Gold - F-ROTO-A2-125GDII

SKU: WYO-F-ROTO-A2-125GDII
  • This Rotolock adapter locks into the 2” opening of a WO Rotolock diagonal or focuser.
  • This is a steppingstone to attaching 1.25” barreled accessories.
  • Rotating the adapter ring will lock and unlock the inserted accessory into place.
  • Using this adapter will ensure that your accessory is centered.
$45.00

William Optics 1000 mm Mortar Tri-Pier - Red - YG-MT-1000-BR

SKU: WYO-YG-MT-1000-BR
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is 1000 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
$628.00

William Optics 1000 mm Mortar Tri-Pier w/ iOptron Adapter - Red - YG-MT-1000-BR-IOPTRON

SKU: WYO-YG-MT-1000-BR-IOPTRON
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is 1000 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
$628.00

William Optics 800 mm Mortar Tri-Pier - Red - YG-MT-800-BR-IOPTRON

SKU: WYO-YG-MT-800-BR-IOPTRON
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is either 800 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
Free shipping Free shipping
$598.00

William Optics 1000 mm Mortar Tri-Pier w/ iOptron Adapter - Gold - YG-MT-1000-GB-IOPTRON

SKU: WYO-YG-MT-1000-GB-IOPTRON
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is 1000 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
$628.00

William Optics 800 mm Mortar Tri-Pier - Gold - YG-MT-800-GB-IOPTRON

SKU: WYO-YG-MT-800-GB-IOPTRON
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is either 800 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
Free shipping Free shipping
$598.00

William Optics 1000 mm Mortar Tri-Pier - Gold - YG-MT-1000-GB

SKU: WYO-YG-MT-1000-GB
  • This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
  • The maximum height of the tri-pier is 1000 mm.
  • William Optics Tri-Pier is compatible with iOptron, Sky-Watcher, Crux, Takahashi, and Vixen mounts.
  • Choosing this WO tripod means you will have the stability of a pier with the flexibility of a tripod.
$628.00