Request InfoPrior Scientific Inc.Prior Scientific Inc. offers the H122ROT high-precision focus drive designed to fit most upright and inverted microscopes with standard coarse and fine focus. To prevent cable twisting and windup, the device is designed with a rotating connector. It provides motorized focus step sizes as small as 0.002 μm for very fine and precise Z-movements. It is available with optional probe-style encoder feedback to provide accuracy and repeatability for researchers using 3-D imaging and deconvolution techniques. 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