Request InfoG & R Labs Inc.G & R Labs has upgraded its calibration services for light-measurement systems and probes, providing a maximum two-day turnaround on standard orders, ±1% NIST traceability and probe matching to within ±1%. The company accepts most makes and models of light-measurement instrumentation that operate in the 540- to 220-nm regions, with values to 100 W/cm2. It says that these improvements enable manufacturers to maximize yields, minimize system downtime and reduce recalibration frequency. A certificate that documents the device’s status before and after service is provided with each order.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 5/22/2023Edge-based Frequency Response Test PatternThe QA-100 ISO 12233:2023 Low Contrast Edge SFR chart from Applied Image Inc. is a test pattern that measures an electronic still camera’s edge-based frequency response (e-SFR). 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