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Photo: PORTA

PORTA II Altazimuth Mount boasts a very high sturdiness and stability and is a beginner's mount dedicated to offer the ease of use and high performance.
A user feels less stress when observing with this mount and can prepare for observation easily. This is a recommended mount for a wide range of users from those using an astronomical telescope for the first time to veteran observers.

Features of PORTA II Altazimuth Mount

Photo: Freestop System
1.Freestop System

The optical tube can be moved to any direction with your hand. It features the freestop system which stops the optical tube weherever you let go.


Photo: Whole-Circle Slow-Motion Handle
2.Whole-Circle Slow-Motion Handle

Unlike the partial slow movement in which the moving range is limited, it features the whole-circle motion without a limit enabling a smooth movement of the telescope. The position of the slow-motion handle can be adjusted at every 45 degrees, and it can be set where it is the easiest to use according to the size of the optical tube.


Photo: Dovetail System
3.Easy Attaching / Detaching of Optical Tube

Using dovetail plate system, optical tube can be attached or detached as you wish(※1). Optical tubes can be swapped from the PORTA altazimuth mount to an SX or GP2 equatorial mount.


Photo: PORTA 2 Adapter
4. One-Touch Installment / Uninstallment

The mount and tripod can be installed or uninstalled easily with a single knob. Can be separated into compact parts and stored or carried around at ease.


Photo: Finderscope
5. Installment of Finderscope

All the optical tubes packed with PORTA are equipped with a Finderscope. It makes it very easy to find a target celestial object.


Photo: Accessory Tray
6.Accessory Tray

Provided with an accessory tray on which you can put small objects such as an eyepiece or a camera. It is useful in observation during the night when you can easily lose small accessories.


Photo: Toolbox
7. Tool Pocket

The tool pocket is provided on the altazimuth mount for storing the tools used to adjust the position of slow-motion knob ort the degree of hardness of freestop system. There is no need to worry about loosing or forgetting the tools.


Photo: Aluminum Tripod
8. Aluminum Tripod with Sturdiness

A very sturdy tripod is attached to the PORTA altazimuth mount. It enables stable observation for an extended time.


*1…Dovetail system, weight less than about 5kg, for optical tubes with outer diameter less than or equal to 160mm only.


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PORTA II Altazimuth Mount

Photo:PORTA II Altazimuth Mount

PORTA II Altazimuth Mount

  • PORTA II Altazimuth Mount can be used by attaching your optical tube on top of it(*1).
    *1…Dovetail system, weight less than about 5kg, for optical tubes with outer diameter less than or equal to 160mm only.

Product No.39951-2


Ruled Line
PORTAⅡ Alatazaimuth Mount
  Set Series

PORTA II Altazimuth Mount, optical tube, tripod are provided as a set in the series.
PORTA II Altazimuth Mount set series are provided with the following types of optical tubes.


Achromatic Refractor Set

Photo:PORTA 2 A80Mf
Logo: f Series

PORTA II A80Mf

 PORTA II Altazimuth Mount + A80Mf Optical Tube + Eyepieces

  • Can also be used for terrestrial observation during daytime by using the attached erect-image diagonal prism. Suitable for observation for an entire day from a terrestrial scenery to a night sky.
  • High-quality optical tubes with low prices, "f Series"

Product No.39952-9
Objective Lens Effective Diameter : 80mm
Focal Distance : 910mm
Optical Tube Length : 860mm
Finderscope : 6x30mm
Total Weight : 9.0kg(Not including the eyepiece)
Eyepieces Attached : PL20mm, PL6.3mm

※Optical tubes are not sold as single units.


Ruled Line
Photo:PORTA 2 A80M

PORTA II A80M

 PORTA II Altazimuth Mount + A80M Optical Tube + Eyepieces

  • Optical tube is high-performance reflecting type which is used for SX equatorial mounts.
  • Equipped with flip mirror. Optical path can be converted by one touch.
  • Optional parts (sold separately) for connecting a camera are available. Astro-photography is also possible.

Product No.39953-6
Objective Lens Effective Diameter : 80mm
Focal Distance : 910mm
Optical Tube Length : 915mm
Finderscope : XY Spot Finderscope(Equal size)
Total Weight : 9.2kg(Not including the eyepiece)
Eyepieces Attached : NPL20mm, NPL6mm

※The optical tube can be purchased separately.


ED Apochromatic Refractor Set

Photo:PORTA 2 ED80Sf
Logo:f Series

PORTA II ED80Sf

 PORTA II Altazimuth Mount + ED80Sf Optical Tube + Eyepieces

  • Optical tube with ED(Extremely low Dispersion glass)lens inside captures a high-contrast and clear field of view with highly reduced chromatic aberration.
  • High-quality optical tubes with low prices, "f Series"

Product No.39956-7
Objective Lens Effective Diameter : 80mm
Focal Distance : 600mm
Optical Tube Length : 570mm
Finderscope : 9x50mm
Total Weight : 10.5kg(Not including the eyepiece)
Eyepieces Attached : NPL20mm, NPL6mm

※The optical tube can be purchased separately.


Newtonian Reflector Set

Photo:PORTA 2 R130Sf
Logo: f Series

PORTA II R130Sf

 PORTA II Altazimuth Mount + R130Sf Optical Tube + Eyepieces

  • Reflector has an aperture 130mm and a high light gathering power.
  • Suitable for observing star clusters and nebulae and other faint celestial objects.
  • High-quality optical tubes with low prices, "f Series"

Product No.39954-3
Objective Lens Effective Diameter : 130mm
Focal Distance : 650mm
Optical Tube Length : 572mm
Finderscope : 6x30mm
Total Weight : 11.0kg(Not including the eyepiece)
Eyepieces Attached : PL20mm, PL6.3mm

※Optical tubes are not sold as single units.


Catadioptric-type Set

写真:ポルタII VMC110L

PORTA II VMC110L

  PORTA II Altazimuth Mount + VMC110L Optical Tube + Eyepieces

  • The PORTA II mount has the advantage of outstanding solidity and stability among an entry class of astronomical telescopes.
  • A compact and handy 110mm aperture VMC110L optical tube offers good light gathering power.
  • A grab and go telescope paid partiular attention with ease of use and performance for quick observing. Highly recommended for both novice and experienced astronomers.

Product No.39957-4
Objective Lens Effective Deameter : 110mm
Focal Distance : 1,035mm
Optical Tube Length : 360mm
Finderscope : XY Spot Finder (equal size)
Total Weight : 8.0kg (Not including the eyepiece)
Eyepieces Attached : NPL25mm, NPL8mm


罫線
Optional Parts

The optional parts for PORTA II Series.

Ruled Line
Photo:Flexible Handle 300mm

Flexible Handle 300mm(Example of installment)

Photo: Desktop Leg

Desktop legs(attachment example)

  • Camera Tripod Adapter for PORTA
    The adapter for attaching PORTA, PORTA II Altazimuth Mount to a camera tripod (through 1⁄4" screw hole)
  • Flexible Handle 300mm
    Long flexible slow-motion handle. Lets you operate in a comfortable position. The handle attach to the PORTA II Altazimuth Mount is also recommended for children.
  • Accessory Plate for PORTA
    The plate for attaching a fieldscope or large binoculars on a PORTA , or PORTA II Altazimuth Mount.
  • Desktop Leg
    Supports PORTA IIAltazimuth Mount on a desk.
  • Digital Camera Quick Bracket
    It is useful to quickly align the lens of your compact digital camera to the telescope's eyepiece for afocal imaging photography.
  • Universal Digital Camera Adapter
    It allows you take photography of afocal imaging easily with a compact digital camera.
  • 31.7-mm Eyepiece
    It is possible to use different magnifications by swapping the eyepiece.

Many other optional accessories that make astronomical observation more fun are offered. Please see the Optional Parts for Astronomical Telescopes page for more information.