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Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm

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  • Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm
  • Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 2 Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 2
  • Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 3 Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 3
  • Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 4 Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm 4

Quick Overview


  • Porta II Manual Alt-Azimuth Mount

  • Multi-Coated Optics

  • 910mm Focal Length, f/11 Focal Ratio

  • 80mmAchromatic Refractor OTA

RRP: AU$1,195.00

Special Price: AU$1,095.00

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Details

Vixen Porta II-A80Mf Refractor Telescope 80mm x 910mm

Most used alt-azimuth mount by beginners to professionals.

Featuring excellent rigidity, stability, and portability, the popular PORTA II alt-azimuth mount is chosen and used by a great number of users from amarture to professional. Using the supplied erect image diagonal, you can observe terrestrial landscape in daytime and you can shoot moon using optional accessories.

Slow motion handles

The whole-circle slow motion movement of the PORTA II provides smooth telescope operation at every pointing angle. Handle positions of both vertical and horizontal slow motion controls can be altered in 45-degree increments. This allows a comfortable posture while using the slow motion handles for various size optical tubes.

Dovetail-plate attachment

With Vixen's renowened dovetail-plate system, many optical tubes, up to 160mm in outer diameter, can easily be swapped on and off the mount.

Accessory tray

An accessory tray holds small pieces such as a camera or eyepieces. Very useful when observing at night.

Compartment for tools

Slow motion handles positions and the amount of friction on the axes are adjusted with tools located in the compartment under the rubber covering. You will always have your tools available.

Detachable tripod system

The mount head and tripod are detachable by single fixing bolt which makes it convenient for transport and storage.

Friction control system

Optical tube can be moved freely by hand and the friction holds its position anwhere you stop it. It allows you to manually point the telescope at target celestial objects you wish to view.

Finder scope

All optical tube units with PORTA II alt-azimuth mount is equipped with finder scope to facilitate pointing the celestial object.

Specifications

Optical tube

Achromatic objective 80mm, multi-coated
Focal Length 910mm (f/11.4)
Reolving power / Limiting magnitude 1.45 arc sec. / 11.3
Light gathering power 131x unaided eye
Dimensions / weight L: 860mm, OD: 90mm, 3.3kg (body 2.5kg)
Finder scope 6x30mm, actual field of view 7 deg.

 

Eyepiece

Visual back 42mm for T-ring, 31.7mm push fit
Eyepiece (Dia. 31.7mm) PL20mm (46x), PL6.3mm (144x)

 

Alt-azimuth mount

Mount type PORTA II alt-azimuth mount
Vertical and horizontal slow motions Worm and wheel gears with 120-tooth whole-circile movement, with slow motion handles
Optical tube setting up Dovetail-plate attachment system
Maximum loading capacity Approx. 5kg
Weight 5.7kg including tripod
Tripod type Aluminum 3-sectional legs (with tray)

 

Tripod

Material / Type Aluminum 2-sectional legs (with tray)
Dimensions / weight L: 900mm⇔1,300mm, H: 705⇔1,200mm, Radius: 370⇔606mm

 

Others

Accessories Erect image diagonal 31.7mm
Photography Eyepiece projection, prime-focus, afocal imaging.
Solar observation Possible with optional sun projection screen set A
Total weight 9.0kg without eyepiece
Accessories Erect image diagonal 31.7mm
Configuration
  • Optical tube assembly
  • PORTA II alt-azimuth mount (with tripod)
  • Eyepiece

 

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