bench focus

  1. Chuck Reece

    Source4 Bench Focus Cross-threaded

    Hi All, We just did our first lighting maintenance week in a couple of (o.k. 5, don't get me started) years, and we came across 4 or 5 Source 4 (1999 model) units that the bench nut for centering the lamp would not budge. In trying, we broke off the plastic thumb tabs, and now we can't even...