Macro Focusing Rail and Stage with Linear Motion Lead Screw.
Fine focusing is precise. Camera to subject distance can be adjusted in minute increments for super-fine focus; lead screw delivers 1.25mm of travel per full revolution.
Rough positioning is done in one of two ways: either press the stage release lever and slide the stage on top of the rail or loosen the jaws of theballhead clamp and slide the rail within the jaws of the clamp. This compound adjustment feature effectively doubles the total gross adjustment range. Turn the focus knob at the back or front of the rail for super-fine focusing. The entire assembly is compact and rock solid. Purchase dedicated body plate separately.
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