Nanjing AMADA Instrument Co., Ltd. · Nanjing, China [email protected] · +86-15195807515
AMADA Microscopes Request A Quote
Home Products Biological MicroscopeZoom Stereo MicroscopeFluorescence MicroscopeMetallurgical MicroscopePolarizing MicroscopeVideo Digital MicroscopeMicroscope CameraAstronomy AccessoryMicroscope AccessoryMagnifier Knowledge About Contact Request A Quote
Home / Products / Astronomy Focuser / J004 2” 1.25” Universal Astronomical Tel
J004 2” 1.25” Universal Astronomical Telescope Focusing Mount

J004 2” 1.25” Universal Astronomical Telescope Focusing Mount

J004 is a 2'' (1.25'' convertible) universal astronomical telescope focusing mount from Nanjing AMADA Instrument Co., Ltd. Designed for Newtonian telescopes, it features a φ84.5 mm dovetail host interface, 70 mm focusing stroke, manual focusing, and all-metal construction for durability in field use.

  • Universal fit with φ84.5 mm dovetail interface for compatibility with standard Newtonian telescope mounts
  • 2'' eyepiece interface with 1.25'' adapter support for interchangeable eyepieces
  • 70 mm focusing stroke enables precise focus adjustment across a wide range of optical setups
  • All-metal construction ensures rigidity and long-term reliability under outdoor conditions
  • Manual focusing method provides direct control without electronic dependency
Request A Quote +86-15195807515

Technical features

  • Host interface: φ84.5 mm dovetail for Newtonian telescope mounting
  • Eyepiece interface: 2'' with 1.25'' convertible adapter
  • Focusing stroke: 0–70 mm
  • Focusing method: manual
  • Material: all metal
  • Compatible with standard Newtonian telescope optical trains
  • No electronic components or power requirements

Who it is for

  • Amateur astronomers using Newtonian telescopes
  • Field service technicians maintaining or modifying telescope systems
  • Distributors sourcing universal focusers for astronomy accessory catalogs
  • Educational institutions setting up observational astronomy stations

Specifications

ModelJ004
Host Interfaceφ84.5 mm dovetail
Eyepiece Interface2'' (1.25'' convertible)
Focusing Stroke0–70 mm
Focusing MethodManual
MaterialAll metal

Use guide

  • Mount the J004 onto a Newtonian telescope using the φ84.5 mm dovetail interface
  • Attach a 2'' eyepiece; use the included 1.25'' adapter if needed
  • Adjust focus manually by rotating the focusing knob across the 70 mm stroke
  • Ensure the mount is securely fastened to prevent optical misalignment during use

FAQ

What is the host interface size?
φ84.5 mm dovetail, standard for Newtonian telescope mounts.
Can I use 1.25'' eyepieces?
Yes. The 2'' interface includes a convertible adapter for 1.25'' eyepieces.
Is the focusing method manual?
Yes. The J004 uses manual focusing with no electronic or motorized components.
What material is used?
All-metal construction for strength and long-term reliability.
What is the focusing stroke?
70 mm, allowing full focus adjustment across a wide range of optical setups.

Related products