WO Star 71 APO Refractor (guiding ring included) [WO-A-WO71II]

William Optics: Gold WO-Star 71 (4 element design) F/4.9, OTA. 2.5" R&P focuser , Vixen style dovetail base , aluminum knob protection cover and High quality soft carry bag
Features
This scope is ultimately designed for astronomers who want the best results in photographic/CCD imaging. The WO-Star71 imaging telescope provides pinpoint stars at the very edge of a 45mm imaging circle.
Key Features
  71mm f/4.9 Imaging Refractor Telescope.
  FPL-53 glass for color free apochromatic performance.
  4 elements in 3 groups (2-1-1- configuration; new, unique, patented design - not a conventional objective/flattener/reducer design).
  Covers 48mm full frame imaging circle.
  2.5" dual speed R&P focuser.
  Includes mounting rings and Vixen style dovetail.
  Weight = 4.19 lbs / 1.9 kg (OTA only); 4.85 lbs / 2.2 kg (OTA with rings and dovetail).
  Focuser drawtube travel = 2.5" / 35mm.
Additional Information
  Focuser drawtube terminates in a male M48 thread. Telescope does not come with a wide M48-Canon EOS adapter ring. Similar rings are available from other supplier for other brands of cameras. Not a conventional 2" focuser tube with locking thumbscrews..
  Optional 1.25" 90-deg dielectric mirror diagonal sold separately for those wishing to use this as a visual. This diagonal comes with a custom adapter that connects directly to the M63 female thread on the telescope's focuser tube; you cannot use standard 1.25" diagonals. Telescope cannot reach focus with larger 2" diagonals.