F Focus Block with 84mm Ring

Meiji Focus Block with 84mm ring, dual coarse focusing knobs, slip clutch and tension adjustment. Fits 20mm mounting pole.

Meiji's F-model Focus Block includes machined rack and pinion gearing for smooth, controlled focus adjustments through 55mm of travel. The dual focus knobs offer tension adjustment and a built-in slip clutch prevents damage to the mechanism or microscope head. Fits 20mm diameter mounting pole.