William Optics Gran Turismo 71 APO Refractor
ITEM #
WO-A-F71GTII
- Telescope tube weight: 4.9 lbs
- Focal length: 420 mm
- Focal ratio: f/5.9
- Aperture: 71 mm
Accessories Added
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William Optics Gran Turismo 71 APO Refractor
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.
- Innovative Bahtinov Mask Cover (Patented) included
Simply Beautiful Finish
- Quality fit and finish powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dew shield, dew shield cap.
- Top quality anodizing.
- Very compact for carrying on flights.
Standard Package
- William Optics Gran Turismo 71 Refractor
- Soft Carry Case
- Patented Bahtinov Mask Cover
- CNC Carry Handle Bar
- Mounting Rings
- 2.5" R&P Focuser
- Vixen Style Dovetail Plate
- 2 Year Warranty
Imaging Package
- Everything listed above
- Flat6A-71 .08x Reducer-Flattener
- Soft Carrying Case
SPECIFICATIONS
| Aperture | 71 mm (2.75") |
|---|---|
| Focal Length | 420 mm |
| Focal Ratio | f/5.9 |
| Free Shipping | Yes |
| Glass Type | FLP53 |
| image circle | 42mm |
| Limiting Magnitude | 11.1 |
| Manufacturer | William Optics |
| Optical Design | Triplet |
| Optical Type | Triplet |
| Tube Length | 325mm |
| Tube Weight | 2.8kg (6.1 lbs) |