Ratio Squares 4, 7, 10mm
Eyepiece Reticle with 3 Squares 10mm, 7mm, 4mm. Area Ratio A:B is 1:3 and B:C is 1:2
£57.82 - £73.84
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0.010mm +/-0.003mm, 0.02mm +/-0.003mm, 0.030mm +/-0.003mm
Soda Lime 1.5mm thick
Correct reading through glass