Trial Lens Set
Model No. HV-EXP3928
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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