Description

Aperture - 90 mm; - focus - 1250 mm; - magnification 39x; - field of view angle 1.3 degrees; - linear field of view at a distance of 1000 meters - 23 m; - pupil removal - 20 mm; - minimum focusing distance 4.6 m; - multilayer coating; - weight 2.3 kg; - length 41 cm; Underneath it is the traditional Celestron colorful gift packaging with photographs and advertising. The advertising states that this tube has: - multilayer coating; - Maksutov-Cassegrain optical scheme; - compact design; - effective for terrestrial and astronomical observations; Multi Coated Optics Maksutov-Cassegrain Optical Design Compact and Portable Design Erect Image System for Terrestrial and Astronomical Use Built-in T-Adapter threads for Ease of Adapting SLR Cameras Comes with 32 mm Eyepiece, 45° Erect Image Diagonal and 8x21 Erect Image Finderscope