Friday, April 12, 2002, 2:56:37 AM, Otis wrote: OWJ> I had a Norwood Director --- one of the former "guises" --- that is 40 to 50 OWJ> years old recalibrated last year. Selenium cell in it and a like unit I sent OWJ> along for spares were both OK --- although the tech did warn when I was checking OWJ> on current serviceability that they run into a fair number with bad cells. I may OWJ> have just lucked out. In any case, for what it was intended to do, it has OWJ> worked fine for me. [...] And Tom on Studio Deluxe: >> when not in use. As I said it is the standard in incident light meters it >> has been around in one guise or another since the 30's. 30+ year old >> selenium cells can be pretty flaky, but anything built since then is >> probably good they will definitely last 20 years or so. I have had two of >> them over the years and would have another now if it weren't for money >> problems.
I think the worst problem with Se cells was humidity. If the cell was insulated right, it would last quite a long time. I have an old Studio Deluxe that's working just right, linear, everything (is there a way to get the meter age from the s/n?). I also have an old selenium Spectra photometer, a movie industry meter, made by a hollywood Photo Research corp., which could use some servicing and calibration. This one is not lockable though. However, the Sekonic is just that: _Studio_ deluxe. It isn't the best incident for low light. Frantisek - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
