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Optics / Lenses / Filters Questions

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Hello! Is there a fast focusing technique for C-mount lenses (< 20 ms). The range of the focus distance is about 200 mm. I've found a product with piezo actuators - but it seems that this only works in microscopy. Another possibility would be lenses with a very high depth of focus. Since I have to cover an area of about 300x200 mm and have short (<50µs) exposure times I can not close the iris to much to enhance the depth of focus because there would not be enough light. Perhaps you can provide me with other ideas or you know companies that concentrate there work on these topics. Thanks and best regards Martin Wollendorfer

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