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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
£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