William Optics
Gran Turismo 71 Twenty Years Anniversary Edition (A-F71GT-VP20A)
- Regular price
- $ 958.00
- Sale price
- $ 958.00
- Unit price
- per
This item is out of stock but you can place an order now and we’ll ship when it becomes available.
In StockDescription
The stunning new William Optics Gran Turismo 71 Apo is the new jewel of the apochromatic refractor world. The new GT71 features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.
Optically Unbeatable
· Triplet air-spaced 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/5.9 lens is ideal for astrophotography.
2" V-power Focuser
- Extra-smooth new 2" Crayford focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting (up to 15Lb.)!
- Comes with two locking screws on angled positions for heavy load applications.
- Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.
- Graduated scale for precise camera alignment.
Simply Beautiful Finish
- Quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dewshield, dewshield cap.
- Top quality anodizing.
- Very compact for carrying on flights.
Accessories NOT Included:
- Finder Bracket (Optional)
- Finder Scope (Optional)
Specifications
|
Aperture |
71mm |
|
Focal Ratio |
F/5.9 |
|
Focal Length |
420mm |
|
Resolving Power |
1.62” |
|
Limiting Magnitude |
11.1 |
|
Objective Type |
3 elements Air-spaced with FPL53 glass |
|
Lens Shade |
Retractable |
|
V-power Focuser |
2" crayford, 1:10 fine focus, 2”-1.25" Adapter |
|
Type of mount |
Includes mounting rings and Vixen style dovetail |
|
Tube Diameter |
82mm （dew shield tube 92mm） |
|
Tube Length |
(325 mm) Fully Retracted (427 mm) Fully Extended |
|
Tube Weight |
2.2kg |
All WO refractors objective are double tested and inspected before shipping to our customer, these telescopes are free of coma and astigmatism.
Buy risk-free: When it’s time to trade up you’ll get the most value for your used gear.
