This ED103S Refractor Telescope bundle from Vixen Optics includes four main components, a telescope, a tripod, a mount, and an electronic hand controller. These items are combined to create a capable and user-friendly rig for celestial object viewing.
Vixen's ED103S Refractor Telescope is an apochromatic refractor with a focal length of 795mm and an aperture of 103mm. It combines the assets of "Super Low Dispersion" glass in the objective lens and a fast f/7.7 focal ratio to deliver clear, wide-field deep-sky imagery. The SD glass lenses produce a crisp, high-contrast field of view that is virtually free of false color. They are capable of focusing the visible spectrum with accuracy and chromatic aberrations are minimized as well.
The ED103S is stable and weighs 8.1 lb. It is fitted with 115mm mounting rings. A dovetail plate is provided, as well as a carry handle. This bundle includes Vixen's 20mm SLV Series 1.25" Eyepiece, a 5mm SLV Series 1.25" Eyepiece, plus a flip mirror diagonal to enable accurate, visual framing and focusing for astrophotography. The flip mirror diagonal can be configured with one of the included eyepieces and a camera. On the ED103S, the 20mm eyepiece provides 39.75x magnification, while the 5mm eyepiece provides 159x magnification.
Made for long observation sessions, Vixen's Sphinx SX2 Equatorial Mount features precision motors and gears for accurate long-duration tracking. Dual stepper motors provide smooth and virtually vibration-free tracking that run at up to 250 pps. Its full-circle brass wheel gear allows the mount to track over extremely long periods with little error. The RA and DEC motors are situated inside the mount to reduce interference, and act as counterbalance for smaller scopes, eliminating the need for the counterweights and shaft. When not in use, the counterweight shaft retracts into the mount and out of the way.
The Sphinx comes with the Star Book One (SB1) hand controller to help find, observe, and track celestial objects. Since near and deep sky objects appear to move at different speeds, the SB1 features celestial, solar, lunar, and King's rate tracking speeds. An integrated autoguider port adds to the mount's usability.
The provided tripod on which to rest the telescope, mount, and hand controller is Vixen's HAL 130 tripod. Its adjustable height allows the user to set the position of the telescope to their liking for easy and comfortable viewing. The top of the tripod is powder-coated with a durable finish that resists chipping, flaking, and fading. The tripod is collapsible for convenient storage and portability.
Also included in this bundle is Vixen's 7x50 Illuminated Finderscope to aid in centering observed objects, and a half pillar which contributes approximately 8.0" of additional height to the mount. This pillar provides clearance when attaching a DSLR to the rear or the telescope, and increases comfort for taller observers as well.