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

Contact for Availability


In stock (can be backordered)

In stock (can be backordered)


Contact Lunt Solar Systems directly for inquiries regarding shipping and delivery times on APM Telescopes Products and Accessories


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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