Making a 102 mm Refracting Telescope (Second Edition)
- Aperture: 90mm(3.5"). Focal Length: 900mm. Focal Ratio: f/6.7. Rack-and-Pinion Focuser, Setting Circles, Latitude Control w/ Scale.
- Large, stable German Equatorial mount with slow motion controls makes tracking celestial objects smooth and simple.
- Low (26mm), medium (9mm), and high (6.3mm) magnification eyepieces give you variety for any viewing situation & 2x barlow lens doubles the magnifying power of each eyepiece.
- Red dot viewfinder helps you point your scope at objects you want to observe & accessory tray stores accessories while observing.
- Includes Astronomical Software and Instructional DVD.