APM LZOS SuperED Triplet APO Refractor 123/738mm with 3.7″ ZTA Focuser

Code: LZOS-123-738-T-3.7ZTA

Delivery contains:

  • Optical tube
  • APM 3.7″ rotation focuser (ZTA)
  • APM Fast Lock Adapter 2″/1.25″
  • Set APM CNC tube rings
  • APM 3″ dovetail
  • Dustcaps
  • Transport handle
  • Case

In Stock with APM Telescopes


In stock (can be backordered)

In stock (can be backordered)


APM – LZOS Telescope Refractor 123 mm f/738 mm, 3.7″ ZTA

 APM-Telescopes has decided to manufacture a new design of their apochromatic refractors and the APM LZOS 3-element SuperED APO is now available in a new Special Package.

The APM 3.7″ ZTA focuser is APM’s new 360° rotatable 3.7 inch rack and pinion focuser, complete with 1:10 micro focusing mechanisms. The 360° rotation enables you to bring your photographic equipment in the required position, which keeping your focus locked and steady.

APM has worked across the board with suppliers and a new design iteration to bring this fantastic telescope to customers at a much lower price point!


Famous LZOS triplet Super ED APO

Made by APM in Germany

Type of telescope: 3-element SuperED Apo Refractor
Lens: 3-element SuperED
Color: white
Tube material: Aluminium
Aperture: 123 mm
Focal ratio: f/6
Focal length: 738 mm
Coating: Multicoated
Resolution: 0.93″
Limit value: 12.3 mag
Max. useful visual power: 250 x
Backfocus: 180 mm (from end of 2″ adapter)
Focuser: 3.7″ APM Focuser, 360° rotatable, with 1:10 Micro Focusing
Connection to eyepiece: Thread M78 ID, M82 ID, M74 OD, M68 ID, 2″ and 1 1/4″
Viewfinder: Finder base, not finder included
Tube diameter: 140 mm
Length during observing: 760 mm
Transportation length: 640 mm
Dewcap diameter: 167.40 mm
Length of Dewcap: 230 mm
Width of Tube rings: 2 Tube rings each 24 mm
Threads in Tube rings: Each tube ring 10 x 1/4″
Distance of threads: Centric, 60.2 mm and 62 mm Distance
Tube weight: 19.8 lb incl. Tube rings
Included accessories: Tube rings, dust caps, Case, APM Dovetail, APM Fast Lock Adapter
Eyepiece adapter: to 2″ and 1.25″


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