William Optics GT102 102mm f/6.9 Apo Refractor - 20th Anniversary Edition (Blue) # A-F102GTSB-VP20A

Our Price: $2,398.00
Free shipping for this item in the Contiguous US Only Click here for more info

Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

Out of Stock
Availability: Item has been discontinued by the manufacturer
Our Product ID: ZZT-ZZWO-F102GTSB-VP20A
Manufacturer SKU: A-F102GTSB-VP20A
Item Can Ship: Worldwide
William Optics GT102 102mm f/6.9 Apo Refractor - 20th Anniversary Edition (Blue) # A-F102GTSB-VP20A

More Views

Product Details

The GT102 20th Anniversary Edition includes a FREE soft carry case.

The new 20th Anniversary 2016 GT102 three-element super apo telescope from William Optics offers superb quality for imaging and visual use at an affordable price. Only 10 sets of this Limited Edition telescope (blue) are being offered worldwide.

The package includes:

  • GT 102 three element design with FPL-53 and other ED element glass
  • Tube mounting rings
  • Retractable dew shield
  • All-new 3" Victory Edition Crayford design with 360-degree rotatable focuser
  • 2 speed knobs 1:10 
  • Aperture: 102mm F6.9
  • Free dovetail plate
  • Free soft carry case
  • Weight: 11 lb; length: 27"

The stunning new William Optics GT 102 APO is the new jewel of the apochromatic refractor world. From the pristine white finish on the CNC to the elegant blue trim, this beauty has more than just good looks. The new GT 102 features a 3-element objective using high-quality FPL-53 glass and combined with other extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.

Optically Unbeatable

  • Three-element air-spaced primary objective (FPL-53) in adjustable CNC machined ultra high precision lens cell.
  • Extremely sharp with excellent color correction.
  • Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces.
  • This f/6.9 is geat for astrophotography.

Simply Beautiful Finish

  • Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, blue finish,
  • Retractable dewshield and dewshield cap.
  • 360-deg rotatable all-new R&P focuser.
  • Top quality anodizing.

Attention to Details

  • 2" & 1.25" adapter included in the price.
  • Anti-marring brass compression rings.
  • Mounting rings / dovetail / soft carry case are included.
  • 2-year warranty from William Optics.

Specification for William Optics Apochromatic Lenses

All William Optics refractor objectives are double tested and inspected by WO at their factory. These telescopes are free of coma and astigmatism. Since all individual lens surfaces are machine coated, sometimes you may notice minor visual imperfections which will not compromise the optical performance of the telescope. The dimensions of scratches and points shall not exceed the following values:

  • Scratches - Maximum Width: 0.025 mm
  • Scratches - Maximum Length: 1/4 of total lens diameter
  • Scratches - Maximum Quantity: Three
  • Dots or Spot Points - Maximum Diameter: 0.4 mm
  • Dots or Spot Points - Maximum Quantity: Three
  • Accumulation of Defects - Limited Area: 0.8mm^2
  • Accumulation of Defects - Total Area: 5.8mm^2
Manufacturer William Optics
Aperture 102mm
Focal Ratio F/6.9
Focal Length 703mm
Objective designed 3 elements with FPL53  and ED together
Resolving Power 1.13 arc
Limiting Magnitude 13.9
Lens Shade Retractable
Focuser OD 3" Victory Ed. Crayford focuser, 360° Rotating Camera-angle Adjuster. 1.25" Adapter Included
1.25" Adapter Brass Compression Rings
Tube Diameter 105mm
Mounting Rings Provided
Tube Length 27" (689mm) Fully Retracted
Tube Weight 11 lbs. (5.0kg)
 Case High Quality Soft  Case included
Case Dimensions
(W x H x D)
31" x 10" x 13 "
(78cm x 25m x 34cm)