Nestled neatly between the myriad of garden-variety 4" APO's and the very expensive 5" refractors - The ED115S from Vixen stands out with its stunning optical performance, a compact form-factor, and an attractive price point.
The ED115S weighs in at a manageable 9.7 lb, and it's 36" in length. The OTA is fitted with a metal carry handle - a huge asset when transporting or lifting the scope into viewing position.
The optical system features environmentally-friendly ED glass lens elements that provide critically sharp edge-to-edge focus, excellent contrast, and they're nearly free of chromatic aberration across the visible spectrum.
This ED115S comes with a pair of 125mm mounting rings, and a dual speed focuser.
Optical Performance
- 4.5"/115 mm objective
- Focal length: 890 mm f/7.7
- Light gathering power: 270x
- Short f/7.7 focal ratio: bright crisp pinpoint star imaging
- ED glass lenses: environmentally friendly lead-free lens elements offer enhanced sharpness, minimal chromatic aberrations - excellent for visual and photographic applications
Use and Handling
- Short optical tube for easy handling
- Backfocus: 5.9" - 4.0 with optional adapter
- Integral metal handle for easy one-handed carrying
- Dual Speed Focuser: coarse and 1/7th speed fine focus adjustments