Focus Knob for LPL 7700 and Saunders/LPL 670XL Enlargers

The original factory right side focus knob for the LPL 7700/670XL enlargers is secured on the shaft by a small D-shaped spring clip. With heavy use, the plastic collar holding the clip wears or splits, at which point the knob turns with no effect and easily comes off. For school and institutional situations in which the enlargers get heavy use and this problem may reoccur, we have this heavy-duty replacement knob. The heavy-duty knob has a brass insert and is secured to the shaft by a set screw. We also normally stock the original standard knob - please see Related Products below.