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User Manual for Vixen Optics ED80Sf 80mm f 7.5 APO ED Refractor Telescope with Porta II Tall Mount Click to enlarge the picture
Contents of the user manual for the Vixen Optics ED80Sf 80mm f 7.5
- Product category: Refractors Vixen Optics
- Brand: Vixen Optics
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Vixen Optics Refractors
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User manual for the Vixen Optics ED80Sf 80mm f 7.5 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Vixen Optics product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Vixen Optics user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Vixen Optics product will considerably shorten its lifespan!
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Product description 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 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 2-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
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- 80mm aperture draws in the amount of light needed for lunar, planetary viewing while being able 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 arc sec
- 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
Tall 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
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 Porta II Tall Alt-Azimuth Mount cewvuseazdwdbtffwrzezedbtccrcb Limited 5-Year Warranty Table of Contents
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Technical parametersVixen Optics ED80Sf Specs | Optical Design | Refractor | | Aperture | 80mm | | Focal Length | 600mm | | Focal Ratio | f/7.5 | | Eyepiece Barrel Diameter | 1.25" | | Diagonal | 90° flip-mirror
1.25" holder and barrel | | Finderscope | 9x50 | | Mount Type | Manual alt-azimuth | | Tripod | Adjustable Height: 40 - 67" / 102 - 170 cm
Aluminum legs | | Power Source | None | | Optical Tube Dimensions | Length: 22.4" / 57.0 cm
Diameter: 4.0" / 10.0 cm | | Weight | Optical Tube: 7.5 lb / 3.4 kg
Mount: 15.0 lb / 6.8 kg, including tripod |
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