Archived posting to the Leica Users Group, 1999/01/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]" Zone VI Modified Pentax Digital Spot Light Meter The industry standard. These modified Pentax Spot meters provide extremely accurate and critically selective exposure readings, plus greater consistency. Ideal for Zone System applications. Modifications include: a series of step-down baffles installed to eliminate flare, infra-red absorbent coating to eliminate reflections, four corrective filters to match meter's spectral response to that of the film, superior photo electric cell and calibration of meter to within 1/6 stop of linearity over their range. " Above is the quote from Zone VI, Jim At 07:35 PM 1/14/99 -0500, you wrote: >At 03:21 PM 1999-01-14 -0800, Jim Brick wrote: >>I had my Pentax Spot Meter updated and calibrated by (then) Zone VI so that >>it would match the response pattern of photographic emulsions. > > >Jim > >This is simply impossible, despite what (then) Zone VI might have assured >you. Selenium matches the response pattern of photographic emulsions more >closely than does CdS or SPD or Gallium Arsenide. The laws of chemistry, I >suspect, are as immutable on this as the laws of economics which dictate >that we all devote the equivalent of the GNP's of Third-World Countries in >order to purchase Leicas. > >Check it out. > >Marc > >msmall@roanoke.infi.net FAX: +540/343-7315 >Cha robh bas fir gun ghras fir! >