$Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount$

Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount

Thumbnail $Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount$
Thumbnail $Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount$

Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount

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Your Price: CAD2,161.83

Part Number: 39956T

Availability: Out of Stock

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Description

Key Features

80mm Apochromatic Refractor OTA
600mm Focal Length, f/7.5 Focal Ratio
Extra-Low Dispersion Optical Glass
Anti-Reflection Multi-Coated Optics

Ideal for visual observation, as well as short to medium exposure prime focus, eyepiece projection, and afocal imaging astrophotography techniques, the Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope is ideal for an amateur astronomer or photographer who is looking for a highly portable, yet capable, kit.

Optically, Vixen outfitted the ED80Sf with extra-low dispersion (ED) glass in a fully multi-coated apochromatic lens system that corrects for both spherical and chromatic aberrations, astigmatism, and off-axis comas. This correction creates a wide flat field of view without distortion and removes the blue-tinted "halo" effect for true high-contrast color transmission. Threads on the drawtube allow direct connection of T-rings and other camera mounts. Complementing the optical performance is a precision Crayford-style focuser that employs a tension control system to eliminate backlash and achieve tack-sharp views, typically not possible with rack-and-pinion styles.

Included with the optical tube assembly (OTA) is a flip-mirror diagonal with dual 1.25" holders. The light path can be directed to the upper holder with the mirror in the up position, and to the rear holder by flipping it down. For visual observation, the mirror can hold two eyepieces to allow easy changes from low to high magnification. When using it for imaging, the camera or imaging system can be used in the back, and an eyepiece can be put on top to check alignment and tracking between exposures.

To provide a solid and secure observational platform, Vixen includes their Porta II manual alt-azimuth mount. This version has a redesigned two-section tripod with a higher maximum height of 67" for use with refractor-style OTAs or for taller people who don't want to hunch. Two control knobs, one for each axis, allows users to make small and precise adjustments for tracking subjects. Its two 120-tooth worm gears let the altitude and azimuth travel a full 360° circle. The Porta II operates without locks and clutches, but rather with a friction system. This means you can simply move the mount by hand to quickly find your subject, then use the slow-motion knobs to track.

Optical Tube Assembly

80mm aperture draws in the amount of light needed for lunar and planetary viewing with the ability to see bright deep-sky objects
Moderate f/7.5 focal ratio makes it a competent astrophotography instrument for fast or moderate exposure times
600mm focal length provides a moderate magnification potential while maintaining a compact form factor
Refractor-style light path delivers clear and sharp images
Extra-low dispersion glass corrects chromatic aberration across the entire visual spectrum for clearer views and images without halos or fringing
Apochromatic lens configuration eliminates spherical aberrations that cause distortion at the edges of the field of view, and further corrects chromatic aberration
Anti-reflection multi-coated optics improve light transmission to produce bright and clear high-contrast images with accurate color fidelity
Resolution: 1.45 arcsec
60mm and 42mm adapter threads accept T-ring and camera mounts for astrophotography and imaging
Crayford-style focuser uses a tension rod to eliminate backlash while providing the precision focusing that rack-and-pinion styles usually cannot achieve

Porta II Tall Mount

Mount:

Manual alt-azimuth design
20-pound payload capacity
Clutchless friction control system is easy to move by hand and stays where placed
Dual-axis slow motion control knobs enable precise tracking and centering of objects with reduced vibration
120-tooth wheel gears provide 360° movement on each axis
Vixen-style dovetail saddle is compatible with a wide variety of OTAs

Tripod:

Two leg sections
Aluminum legs help to reduce weight
Adjustable 40-67" height accommodates a wide variety of users with a higher max height than standard Vixen tripods
Center tray stabilizes tripod while offering a place for accessories such as eyepieces and filters

Included Accessories

Flip-Mirror Diagonal:

1.25" barrel
Dual 1.25" holders for the most common-sized eyepieces and accessories
Enables the use of two eyepieces or a guider eyepiece and imaging system
Flip mirror down to direct light straight back, or move it up to use upper holder

Finderscope:

9x power ensures a wide field of view to make finding subjects fast and star-hopping navigation easy
Large 50mm aperture makes finding alignment and guide stars easy
Mounting bracket included

Carry Case:

Hard aluminum exterior with reinforced corners protects OTA and accessories
Custom-cut foam lining
Hinged carry handle
Dual snap-lock latches

Vixen Optics ED80Sf Specs

Optical Tube Assembly

Optical Design	Apochromatic Refractor
Aperture	80 mm / 3.1"
Focal Length	600 mm
Focal Ratio	f/7.5
Resolution	1.45 Arcsec (Dawes)
Focuser	Crayford
Eyepiece Barrel Diameter	1.25"
Diagonal	90° Flip
Finderscope	Yes
Mounting System	Vixen Style
Optical Tube Dimensions	22.4 x 3.9" / 57 x 10 cm

Mount

Type	Manual; Alt-Azimuth
GoTo Capability	No
Payload Capacity	20 lb / 9.1 kg
Counterweight	None

Tripod

Type	Adjustable, 2-Section
Tripod Height Adjustment Range	40.2 to 66.9" / 102.0 to 170.0 cm
Material of Tripod	Aluminum

General

Batteries	None
Adapter	None
GPS	No
Wi-Fi	None
Weight	7.5 lb / 3.4 kg (OTA) 15.0 lb / 6.8 kg (Mount/Tripod)

In the Box

Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount

Flip-Mirror Diagonal

Finderscope with Bracket

Hard Carrying Case for OTA

Vixen Optics Porta II Tall Alt-Azimuth Mount

Limited 5-Year Warranty

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$Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount$

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Vixen Optics ED80Sf 80mm f/7.5 APO ED Refractor Telescope with Porta II Tall Mount

Choose Options or Accessories if Applicable

Optical Tube Assembly

Porta II Tall Mount

Included Accessories

Vixen Optics ED80Sf Specs

In the Box

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