LunaSix F or Weston Master III
LunaSix F or Weston Master III
The in-camera Cds-based meters of the '60's tend to fail, but if you are very determined it is possible to have them replaced, as cells can still be bought from industrial electronic suppliers.
Like Roger I also have an original '60's Cds-based LunaSix that is still accurate on my stock of new mercury batteries. The Gossen LunaSix was a very high quality unit and has lasted longer than other makes.
Selenium meters are now getting a bit long in the tooth. George at Quality Light Metric has just completed the servicing of all my Weston Masters - 1x Master 715 (1939-45); 1x Master II (black, US, 1946); 2x Master III (black, UK, 1956); 1x Master IV (UK, 1960); as well as my two Gossen LunaSix F's.
Interestingly the selenium cells of my 1950's UK Sangamo Weston Master's had the highest output. I threw out 12 other assorted Westons with poor cells, including many IV's, V's, Euro-Master's and Euro-Master II's. These were mostly quite battered. The smaller selenium cells in the older Westons (I, II, III) appear better sealed and live longer than the later types (IV, V, EuroMaster, EuroMaster II).
Here's a good page on the Weston Master III:
http://www.lungov.com/wagner/c/052c.html
I enjoy using and can recommend the Weston Master III. I would go for the late-model black enameled UK type. This very late version has a white scale. Get one that looks brand-new, preferably in the original box.
Here's the breakdown on Weston Master features:
Weston Model - Aperture - Film Speed Scales
late Master I f/1.5-32 Weston
early Master II f/1.5-32 Weston
late Master II f/1.1-32 Weston
UK Master III f/1.1-32 Weston, EV
US Master III f/1.0-32 Weston, LV, Polaroid
Master IV f/1.0-32 ASA, EV
Master V f/1.0-32 ASA, EV, DIN
Master's I-IV are rated in foot-candles
Master's V-onwards are rated in log-LV (like earlier cine's)
Master I, II & III UK - have dial lock.
Master III US - no dial lock
Master III UK - has std f/stops highlighted (1.4, 2, 2.8, etc.)
Master I & II - do not.
Weston Master cell response test:
- point the meter at a light source that causes it to read "50" on the low scale with the baffle covering the selenium element open, then close the baffle without moving the meter. If all is well the meter should still read "50" on the high scale.
For better low-light performance and a better chance at finding a good one try a Gossen LunaPro F. This model takes a 9v radio battery and uses a silicon photo diode. These are commonly available for $50-100 and have a huge arrange of clip-on attachments - measuring probes, tele finders for semi-spot metering etc.