131 articles published
A single-source lens quote is a commercial offer with no rival bid to test price, schedule or specification against. The missing bidder...
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An incoming lens check without an MTF bench is a documented three-way decision rather than a measurement: the maker’s batch report is...
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A focus ring at the end of travel is a position limit, not a focus verdict. A shorter body moves the sensor...
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Clamps that have worn round belong to maintenance first, and to a missing specification second. The fixture failed its own upkeep when...
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When a purchased lens becomes a part record in your PLM, the maker can reasonably supply four things per part number without...
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Your first custom lens deserves a strange sentence before anyone machines a single part: the design is not finished when the simulation...
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A width reading that moves when an operator nudges the part is perspective error, the signature of a conventional lens: apparent size...
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Dry them and put them back is not a decision. It is a hope with a schedule. Coolant is not water: a...
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Before you commit a two-year lens program to one maker, the datasheets tell you what every bidder can do on a good...
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