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Items 1 - 25 of 178

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 Redcat 51 Refractor Telescope - A-RC51-RD - Used - SOLD

SKU: UEQ-11553-WYO-A-RC51-RD
  • Optical Design: Refractor
  • Telescope Aperture: 51mm (2")
  • Focal Ratio: f/4.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
Free shipping Free shipping
$698.00 $549.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Blue - CPBM-132BU

SKU: WYO-CPBM-132-BU
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Red - CPBM-132RD

SKU: WYO-CPBM-132-RD
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Gold - CPBM-132GD

SKU: WYO-CPBM-132-GD
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics 50mm Erecting Finder Scope - Red - M-F50IIRD

SKU: WYO-M-F50II-RD
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$158.00
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 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 SLT-1100 FLT Adapter

William Optics STL CCD Camera Adapter - P-STL

SKU: WYO-P-STL
  • Adapter Connector Type - Side A: SBIG (2.156")
  • Adapter Connector Type - Side B: M92
$112.00

William Optics WhiteCat 51 APO f/4.9 Refracting Telescope - Limited Edition - L-RC51W

SKU: WYO-L-RC51W
  • Optical Design: Refractor
  • Telescope Aperture: 51mm (2")
  • Focal Ratio: f/4.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
Free shipping Free shipping
$698.00

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 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

High Point Scientific carries the most popular telescope brands among astronomy enthusiasts, including Celestron, Baader Planetarium, Orion, and many more. We also design our own astronomy products under the High Point brand, to give you the best selection of products at the price you’re looking for.


We work directly with manufacturers to give you a wide selection of products from many other brands like Meade, TeleVue, Explore Scientific, Coronado, and iOptron. While we have dedicated many hours researching what telescope brands you - our customers - are looking for, we encourage you to explore up and coming brands on our website such as William Optics, Pentax, SkyWatcher, and Stellarvue.


High Point Scientific offers many of the latest brands to choose from for telescope accessories. Just a few of these brands include AstroZap, ADM Accessories, Losmandy, Takahashi, and JMI. It’s important to make sure you have the correct accessories for your aspirations and budget and our experts are here to make sure you find them.


Astro-imaging is a growing industry, not just for photographers, but for astronomy hobbyists as well. With so many quality, affordable products, it’s easy to see why! Brands like QSI, ZWO, and QHY have designed some of the best astrophotography cameras in the industry, and we have them right here at High Point!

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