Traditionally, espresso is brewed with a 1:2 ratio with about 20 grams of coffee to 40 grams of output. But with the WAFO ...
With both the trial lenses and the customized lenses, the following parameters were used: diameter, 16 and 17 mm; deep sagittal, 4,500 up 6.100 microns; back curve, 6.4 up 9.0 mm; prolate and oblate ...
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