MSRP: $4,060.00 Sale Price: $2,999.00 Savings $1,061.00
Vixen Apochromatic Refractor OTA ED115SWT 115MM 4.5" F7.7 2616
Item No. 605-12616 Manuf. No. Vixen 2616
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This Vixen ED115SWT is big scope ę big in performance and big in price. Itęs a full-size medium focal length 115mm (4.5") aperture f/7.7 refractor. The air-spaced doublet apochromatic optical system of this optical tube uses an ED (Extra-low Dispersion glass) lens element. This reduces chromatic aberration to vanishingly low levels for both visual and photographic applications.
Measuring 37" long with its dew shield retracted, and weighing 9.7 lbs., itęs still a reasonably portable optical tube for terrestrial or astronomical use on your own sturdy altazimuth or equatorial mount.
The scopeęs optical tube measures 125mm in diameter. It is supplied with 125mm diameter mounting rings and a dovetail mounting plate that fits all Vixen mounts, the Celestron CG-5 and Advanced Series go-to mounts, and the Meade LXD75 go-to mount. The dovetail can be removed so that the mounting rings can be attached directly to other dovetail plates, such as those used on the Celestron CGE and Losmandy GM8 and G11 mounts. A metal handle is attached to the rear mounting ring for easier carrying and assembly in the field.
The ED115SWT has a 2" rack and pinion focuser for use with 2" star diagonals, image erectors, or wide-field eyepieces. A dual T-thread 1.25" flip mirror star diagonal that fits into the focuseręs 2" accessory holder is also standard equipment. This flip mirror lets you switch instantly between two different 1.25" eyepieces to change magnifications (or between a camera using a standard T-ring and an eyepiece) at the turn of a knob. Optional eyepieces are shown in the image to the left, but they do not come with the optical tube. The supplied 7 x 50mm achromatic finderscope has crosshairs and a wide 6.8ę field of view that makes it easy to locate targets of interest.
Optically the scope is excellent, with very sharp and detailed high-contrast images. The images are virtually free of spurious color due to its fully multicoated apochromatic ED optics. Mechanically, the scope is very well made and finely finished, as is typical of all Vixen products. If you need a big and optically truly excellent apochromatic optical tube to complement your existing quality equatorial mount, and the price is not too challenging, this is a scope well worth considering.
Highest Useful Magnification 223x
Focal Length 890mm
Focal Ratio f/7.7
Resolution 1.01 arc seconds
Visual Limiting Magnitude 12.8
Weight 9.7 lbs.
Warranty 5 years
1.25" flip-mirror star diagonal
7 x 50mm straight-through finderscope
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