AVX System User Guide
7.4 Focus Strategy
Always work at best focus. Focus is determined by adjusting the horizontal Z distance from the lens to the workpiece. Following are guidelines for setting focus: • To set focus, move the stage from front to back until you find the two points on both sides of the point of best focus where the image just starts to defocus. The point of best focus will be approximately midway between these two points. • When using zoom optics, first focus the image at highest magnification, then decrease the magnification to the desired level.
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