Vixen Optics AX103S Refractor 103mm f/8 Apo Refractor Telescope is an ideal optic for astronomy and astrophotography. Optically, it s designed with a fully multi-coated 3-lens apochromatic extra-low dispersion (ED) glass lens system that corrects both spherical and chromatic aberrations. This correction creates a wide flat field of view without distortion and removes the blue-tinted halo effect for true high-contrast color transmission. A rear field corrector lens further corrects astigmatism and distortion at the edges of the lens so views remain crisp and sharp from edge to edge.
The scope can be used for multiple astrophotography techniques including prime-focus, afocal imaging, or eyepiece projection. A traditional rack-and-pinion focuser, with adapter rings, is employed to be able to handle the heavier loads of astrophotography rigs and can accept 2 eyepieces and accessories for making visual observations. Vixen includes a flip-mirror diagonal that allows the use of two different eyepieces for observational flexibility, or an eyepiece and imaging system that lets users simply flip the mirror to check alignment and tracking accuracy between exposures without having to touch the imager. While the AX103S is offered here without a mount or tripod, a Vixen-style dovetail plate that fits on compatible saddles is included, along with a mounting ring assembly with an integrated carrying handle to make setup and breakdown easier and safer.
Optical Tube Assembly
- 103mm aperture
- f/8 focal ratio
- 825mm focal length
- Extra-low dispersion (ED) glass lens corrects chromatic aberration for accurate color rendition
- Three-element apochromatic optical path corrects for spherical aberration to improve clarity, contrast, and image sharpness
- Fully multi-coated optics maximize light transmission
- Rear field corrector lens reduces astigmatism and distortion, especially at the edge of the field of view
- 1.13 arcsec resolution
- Sturdy rack-and-pinion focuser
- 7x50 finderscope with illuminated center aiming crosshair for precision positioning and alignment
Imaging
- Dual 2 eyepiece holders
- Internal flip mirror allows the use of two eyepieces or eyepiece/imaging combination
- Able to perform various astrophotography techniques including eyepiece projection, prime-focus, and afocal imaging
- When imaging, quickly flip mirror to check tracking between exposures without un-mounting imaging rig
- 60mm and 50.8mm T-threads on straight-through light path allow the use of optional camera-specific T-rings
Mounting
- Optical tube assembly only - mount and tripod required for proper use
- Includes tube ring set with a Vixen-style dovetail plate
- Carry handle for safe setup, breakdown, and transport
- OTA weight: 10 pounds
Vixen Optics AX103S Specs
| Optical Design | Apochromatic refractor |
| Aperture | 103mm |
| Focal Length | 825mm |
| Focal Ratio | f/8 |
| Eyepiece Barrel Diameter | 2 x 2.0" |
| Diagonal | Internal 90° Flip-mirror mechanism |
| Finderscope | 7x50, illuminated |
| Tripod | None |
| Mount Type | Vixen-style dovetail plate |
| Power Source | None |
| Optical Tube Dimensions | 27.0 x 4.5" / 69.0 x 11.5 cm |
| Weight | 10.0 lb / 4.5 kg |
In the Box
- Vixen Optics AX103S Refractor 103mm f/8 Apo Refractor Telescope (OTA Only)
- Vixen-Style Dovetail Plate
- Flip-Mirror Diagonal
- Mounting Ring with Carry Handle
- 7x50 Illuminated Finderscope
- 5-Year Manufacturer Warranty
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