Briot ALTA EVOLUTION Blocker - Page 60

ALTA EVOLUTION / EVOLUTION GT … User manual
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ALTA EVOLUTION / EVOLUTION GT
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3.3.8.6. CENTERING A 3-POINT LENS
First mark your unifocal lenses with the lensmeter.
Manually align the 3 points along the centering axis (green), with the midpoint at the center of the cross:
Manual brightness
adjustment