William Optics Golden GT81 Gran Turismo APO Refractor Telescope
- This William Optics Golden GT81 Gran Turismo APO Refractor Telescope has a Triplet air-spaced objective (FPL-53) in an adjustable CNC machined ultra high precision lens cell
- The scope optics are extremely sharp and have 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 doing astrophotography
- This scope includes a 2.0" R&P Focuser
The stunning new William Optics Gran Turismo GT81 APO Refractor telescope is the new jewel of the apochromatic refractor world. From the pristine white finish on the CNC tube assembly to the elegant gold trim this scope has more than just good looks... The GT81 features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree. In short, this scope is optically unbeatable.
The Golden GT81 Gran Turismo APO Refractor from William Optics includes an extra-smooth 360deg rotatable 2" R&P focuser with 1:10 dual speed control; a treat to use during astrophotography. No image shifting! It also comes with two locking screws on angled positions for heavy load applications and large aluminum knob with installed thermometer. Optional DDG is not included.
- Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dew shield, 360deg rotatable R&P focuser, dew shield cap
- Top quality anodizing
- Very compact for carrying on flights
This GT81 APO Refractor scope by William Optics has stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems, as well as a graduated scale for precise camera alignment. It includes a 2" & a 1.25" adapter plus anti-marring brass compression rings to hold your eyepieces and accessories firmly. It has a carrying handle with a V-shape night glowing illuminator. The 90mm mounting rings are optional accessories. This APO triplet GT81 refractor telescope includes a 2-year warranty from WO and also a high quality soft carrying bag.
|Focal Length||478 mm|
|Objective Type||Three element with FPL-53 Air Spaced, Fully Multi-Coated,STM coatings|
|Resolving Power||1.43 seconds of arc|
2" 360° Rotating Camera-angle Adjuster, 1:10 fine focus
|1.25" Adapter||2" Brass Compression Rings|
|Field Stops||Knife-Edge Baffles|
|Tube Length||440mm Fully Retracted
484mm Fully Extended
|Tube Weight||3.7 kg|