TEL301 Direct View Telescope

  • TEL301 telescope with aperture range and macro lens
  • TEL301 radiant intensity and luminous intensity telescope
  • TEL301 telescope with range of coupling options

The TEL301 has options on working distance and is supplied with a range of apertures to define the area of the source measured.

The addition of a DH400-VL photometric detector and the ORM400 picoammeter turns the TEL301 into a versatile luminance measuring spot meter.

Core benefits


  • Direct view telescope
  • Four interchangeable apertures are supplied giving angular fields of view (fov) at 6', 20', 1° and 2°
  • Linear coverage at a distance D is: 2D tan (FOV/2)
  • A range of coupling options

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