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Trial Lens Set
Trial Lens Kit is an attractive set,
prepared from imported extra white lenses of high standard accuracy.
The lenses are of plano from Black Vertex Power. 20mm aperture fitted
in aluminium mounts of 38mm diameter. The plus and minus mounts of
different colours. Handles are provided on spheres. The tray rises
automatically when opened with light control. The case is an attractive
coloured acrylic top with double lock and simple trial frame. Contents- 32 pairs each cx and cc sph
- 20 pairs each cx and cc cyl
- 0.25 to 4.00 in 0.25 steps
- 0.25 to 3.50 in 0.25 steps
- 4.50 to 6.00 in 0.50 steps
- 4.00 to 6.00 in 0.50 steps
- 7.00 to 14.00 in 1.00 steps
- 10 prisms: 1/2. 1,2,3,4,5,6,8,10,12
- 16.00 to 20.00 in 2.00 steps
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