Website for deliveries in USA and Canada. Welcome!

Search results for 'william optics gt gran turismo 81 iv'

Set Ascending Direction

  1. TS Photoline APO refractor wit 72 mm aperture and fast f/6 focal ratio, a great travel telescope for observation and astrophotography.


    • ♦ Powerful, aberration-free apochromatic refractor with 72 mm aperture and 432 mm focal length.
    • ♦ Fast focal ratio: f/6
    • ♦ FPL53 doublet objective (Ohara Japan), air-spaced - additional lanthanum element, so no chromatic aberration
    • ♦ 2.5" dual-speed rack-and-pinion focuser - ball bearing mounted for maximum load with M63x1 female thread for adaptions
    • ♦ Retractable dew cap - the apo even fits into the hand luggage
    • ♦ CNC tube rings with versatile dovetail bar - EQ5 style and with photo tripod connection.
    • ♦ Findershoe on the focuser is included
    • ♦ Weight only 2.18 kg - transport length only 31 cm

  2. Refractor 72mm flattened quintuplet Askar FRA400 focal length F / 5.6 - Correct image circle 44mm

    • 72 mm apochromatic refractor with matched lens assembly with one ED
      element
    • 420 mm focal length (f/5.8)
    • Dual-speed 2” Crayford-type focuser
    • Tube-ring attachment hardware with V-style dovetail plate
    • Aluminum case

Set Ascending Direction