GT81 Latest & Most Current Version: GT81-IV

William Optics GT81 APO is a f/5.9 air-spaced triplet FPL-53 apochromat. This package includes a 0.8x Flat6A-81 reducer cum flattener specially designed for GT81 to transform it into a f/4.7 imaging APO covering full frame sensor.

Includes

• GT-81 Triplet APO
• 2.5" V-Power crayford zero image shift focuser
• Flat6A-81 reducer flattener 
• Canon T-mount and spacer 
• L-bracket mounting
• A pair of Finderscope / guidingscope mounting rings
• 2" to 1.25" adapter with brass compression ring
• Retractable lens shade
• Carry handle with V-shape illuminator

Highlights

• 81mm f/5.9 triplet air-spaced objectives aprochromatics
• Includes 1 FPL-53 fluorite element
• Precision optics with STM coating
• Very sharp image with great colour correction
• Designed for astrophotography

Cyclops Optics' Exclusive Fine Tuning Service

We offer fine tuning service for the telescopes to provide a smoother screws control and grant the telescope a premium quality touch. The fine tune service costs HK$400 (US$50). It's now waived for time-limited period.

Specifications

Free shipping applies

United States, S. Korea, Japan, Malaysia, Philippines, Singapore, Hong Kong, Taiwan, Indonesia, Australia, New Zealand, Germany, France, Switzerland, Sweden, Denmark, Netherlands, United Kingdoms and others.

Via FedEx International Economy. Arriving in 1-5 working days.

Warranty

7 days no question asked return if due to material or worksmanship defects

2 years from William Optics

Cyclops Optics Ltd. is an authorised dealer of William Optics' products.

Quality Control