Measurement of EV and AV values for large-diameter (φ180) interchangeable lenses is possible! High precision of ±0.02 EV! Hysteresis evaluation is possible with high sampling!
The "AFD-4000" is a high-precision AV tester compatible with large diameters (φ180). It can measure the aperture area of interchangeable lenses. It is capable of measuring EV and AV values. By illuminating with a large parallel light of φ180, it supports large-diameter lenses. Continuous operation aperture diameter evaluation from wide open to minimum aperture is possible. High sampling (1000 times/second) allows for hysteresis evaluation. It can measure the movement of the aperture, making it useful for the development of video-compatible lenses. 【Features】 ○ High precision: ±0.02EV ○ Uses LED as the light source. ○ Measurement of the aperture area of interchangeable lenses ○ Compatible with large diameters (φ180) ○ Capable of measuring EV and AV values ○ Uses LED as the light source ○ Continuous operation aperture diameter evaluation from wide open to minimum aperture (1000 times/second) ○ Hysteresis evaluation possible with high sampling ● For more details, please contact us or download the catalog.
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【Specifications】 ○Measured Object: Aperture diameter of interchangeable lenses, AV value ○Measurement Item: EV error relative to the reference aperture F value ○Effective Measurement Aperture: Entrance pupil diameter φ180 or less ○Measurement Display ・[EV]: -13.10 to +13.10 ・[AV]: 0.00 to +15.10 ○Measurement Accuracy: ±0.02EV ○Calibration: Calibrated at reference aperture ○Power Supply: AC100 to 240V (50Hz/60Hz)・100VA ○Dimensions ・Control Unit: 216(W) × 234(H) × 322(D) mm・7kg ・Light Source Unit: 1430(W) × 1300(H) × 450(D) mm・150kg ○External Interface: USB ●For more details, please contact us or download the catalog.
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Company information
Since its establishment in 1965, Kyoritsu Electric has built a track record in the development of original products with the theme of "the fusion of light and electronics." Since 1971, we have supplied camera measurement instruments (exposure testers, luminance meters, flash testers, shutter testers, service testers, LED light sources, collimators, etc.) developed in-house, holding a significant market share primarily among camera manufacturers. Our long-cultivated optical measurement technology has been utilized in adjustment light source devices for digital cameras and video cameras, image sensor mounting alignment measurement instruments, flash light measurement instruments, and more, contributing to quality improvement. We obtained ISO-9001 certification in 1994 and are committed to traceable manufacturing. Additionally, we take pride in having a wide-ranging presence with agents in the United States, China, Taiwan, and South Korea. Moving forward, we are determined to refine our technology as a manufacturer contributing to the optical industry.