Buy one, get one 25% off - Alpen Optics

Vixen  |  SKU: ES39952-SO

Vixen Porta II A80Mf 80mm f/11.4 Achromatic Refractor Telescope


Apply 6% coupon today with code EARTHDAY6. Expires 4/22 @ 11:59pm ET.

Estimated delivery in 3-5 business days via UPS or FedEx

Ships from US warehouse in 1-2 business days

Shipping & Returns

We offer free US standard shipping on orders over $99 and 30-day returns on most items. Some limitations apply.

Shipping Policy

30-Day Return Policy

Vixen Porta II A80Mf 80mm f/11.4 Achromatic Refractor Telescope


  • 80mm / 3.1" Achromatic Refractor
  • 910mm Focal Length
  • f/11.4 Focal Ratio
  • Fully Multi-Coated Optics
  • Two Plossl Eyepieces: 20mm, 6.3mm
  • 1.25" Erect-Image Diagonal
  • 6x30mm Finderscope
  • PORTA II alt-azimuth mount
  • Friction Control System
  • 11 lb Payload Capacity
  • Adjustable-Height Tripod

The Vixen Porta II A80Mf telescope set includes everything that an entry-level astronomer needs. The A80Mf is an achromatic refractor with excellent color correction properties, making it ideal for observing the moon and the planets. It is also suitable for observing bright nebulae.

The PORTA II mount is not just popular among beginners – it also allows experienced astronomers to mount their devices quickly and easily. The PORTA II features a high-quality design and comes with a fine adjustment function for both axles.

The PORTA II does not require a clamp, as it sports a slip clutch that allows you to adjust the position to your desired object. It automatically holds its position, making it easy for users of all abilities to operate.

Slow Motion Handles

PORTA II boasts a whole-circle slow motion movement, ensuring seamless telescope operation at any pointing angle. The handle positions for both vertical and horizontal slow motion controls are adjustable in 45-degree increments, offering users the flexibility to achieve a comfortable posture while operating the slow motion handles with optical tubes of various sizes.

Dovetail Plate Attachment

Vixen's widely acclaimed dovetail-plate system facilitates effortless interchangeability of numerous optical tubes, accommodating sizes of up to 160mm in outer diameter. This versatile system allows users to seamlessly mount and dismount various optical tubes with ease.

Accessory Tray

A dedicated accessory tray is designed to securely hold small items like cameras or eyepieces, offering practical convenience during nighttime observations.

Compartment for Tools

The positions of slow motion handles and the level of friction on the axes can be fine-tuned using the tools conveniently housed in the compartment beneath the rubber covering. This ensures easy access to the necessary tools whenever adjustments are needed.

Detachable Tripod System

The mount head and tripod can be easily detached using a single fixing bolt, providing a convenient solution for transportation and storage purposes.

Friction Control System

The optical tube is maneuverable by hand, and the friction mechanism ensures it maintains its position at any stopping point. This feature enables users to manually direct the telescope toward specific celestial objects they intend to observe with precision and ease.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Meta Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely encrypted during transmission. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Be the first to write a review

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question
Vixen Porta II A80Mf 80mm f/11.4 Apochromatic Refractor Telescope | ES39952-SO | 4955295399529

Vixen Porta II A80Mf 80mm f/11.4 Achromatic Refractor Telescope





80 mm | 3.1"

Focal Length

910 mm

Focal Ratio


Field of View



1.45 arc seconds resolution

11.3 limiting magnitude

Fully multi-coated optics

Barrel Size



L: 860mm x OD 90mm


19.8 lb | 9 kg
View product