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Professional Trail Frame

Professional Trail Frame

  • £189 – Special offer
  • Comes with 4 nose bridge pads
  • High quality trial frame
  • Please see technical info below
  • FREE Delivery

Original price was: £199.00.Current price is: £189.00.

Description

Professional Trail Frame

Technical Information

  • Pupil distance adjustment range: the binocular pupil distance 48-80mm; the left or right pupil distance is 24~ 40mm; the minimum scale value is 1mm.
  • The dial axis position scale: the left indexing disk is 130°~0°~120°, the right indexing disk is 50°~180°~60°, the axial-position scale is increased in the counter clockwise direction along the axis of the frame, The scoring interval is 5°.
  • Effective internal aperture of mirror frame: 33.5mm.
  • When the left or right frame is used, the number of lenses can be inserted:5 pieces(front 3 and back 2)
  • The degree of rotation of the lens in the inner ring of the frame about the optical axis is 360 °.
  • Non-parallelism of the optical axis of the lens and the geometric axis of the frame: ≤2.5°.
  • Different concentricity of the optical centre of the lens and the geometric centre: not less than 0.5mm
  • Displacement of the lens with respect to the position of the geometric centre of the frame: not less than 0.3mm
  • Nasal support adjustment range: adjustable length:0-25mm; angle:360°.
  • Adjustable length of left or right feet:0-30 mm
  • Weight:53g