Diopter To Meter Conversion. The second one is from optical. You can also switch to the converter for dioptre.
from www.lentiamo.co.uk
to convert focal length to diopters, the formula used is: D = 1000 / 20. The first one is from optical.
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Diopter To Meter Conversion The second one is from metric. 32.00 — 10.55 40.12 — 8.41 44.25 — 7.63 48.37 — 6.98 52.50 — 6.43 33.00 — 10.23 40.25 — 8.39 44.37 — 7.61 48.50 — 6.96 52.62 — 6.41 34.00 — 9.93 40.37 — 8.36 44.50 — 7.58 48.62 — 6.94 52.75 —. .2cm * 100 = 20 mm. The second one is from optical.