The Swarovski CTS 85 Extendable Telescope with Stay-on-Case has an extended length of 43.6 cm (17.2 in), provides ideal comfort in use and allows for quick identification of subjects. The double extendable tube ensures additional stability, and combined with the 85 objective lens, target identification is still possible even at high magnification. This provides the opportunity for photography through the telescope and thus for wildlife documentation. The CTS 85 scope is compatible with both the Swarovski 20-60x or Swarovski 25-50x W eyepieces (sold separately). Features of the Swarovski CTS 85 Extendable Telescope with Stay-on-Case The Swarovski CTS 85 Extendable Telescope with Stay-on-Case requires the addition of either the Swarovski 20-60x or Swarovski 25-50x W eyepiece, which are not included. Extendable telescopes from Swarovski Optik deliver high-luminosity images with edge-to-edge sharpness under the most diverse light conditions. These SWAROVSKI OPTIK extendable telescopes are particularly comfortable to use due to the smooth, pull-out mechanism and are compact enough to be stowed in a day-bag backpack, at only 1.4kg (exc. eyepiece) they are great for spotting on the go. The non-stick effect of the SWAROCLEAN coating on the outer surface of the lens makes cleaning objective and eyepiece lenses considerably easier, above all when removing dried-on mineral residues (e.g. water marks due to condensation), insect repellents and tree resin. The lenses require less intensive cleaning which significantly increases the longevity of optical products. Specifications of the Swarovski CTS 85 Extendable Telescope with Stay-on-Case Field Of View, Apparent [degrees] 2.4 - 1.55 (20-50x), 2.1 - 1.1 (20-60x) Included Accessories Stay-on case Light Transmission [%] 86 (20-50x), 82 (20-60x) Minimum Focus Distance [m] 8.00 Objective Lens Diameter [mm] 85 Size [mm] 246 Weight [g] 1400.00 For more Swarovski Products see here.