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Image Science manufactures computer-controlled test equipment to measure the optical performance of lenses and other image-forming systems. Image Science test systems offer exceptional levels of speed, accuracy and repeatability. The equipment is easy to use and can be configured for research or production testing. Measurement capabilities include: modulation-transfer function, relative transmission and vignetting, effective focal length, astigmatism, flange focal length, chromatic aberration, field curvature, (EFL), (FFL) and (MTF)
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http://www.image-science.co.uk
