G2 metering bias?

sircarl

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I'm about to take my G2 on vacation to Italy, where I'll be using it for the first time to take slides. (Have always shot B&W with it till now.) So knowing that exposure accuracy will be important, I decided to test the camera's meter against my Gossen light meter, set to measure reflected light. In different lighting situations, including using a gray card, the camera (loaded with film) always indicated at least one stop more exposure than the light meter. I then tested the G2 against my Contax Aria SLR, which I used previously for vacation slides, and that too showed at least one more stop exposure than the meter. Finally, just to make sure there wasn't a problem with my light meter, I went and compared it to a Sekonic meter owned by my neighbor. Both showed almost exactly the same readings.

So my question for G2 owners out there -- have you found a similar meteering bias in your cameras? I can see how I might not have spotted it before now, since the B&W I normally shoot with the G2 is more forgiving of overexposure. The thing that puzzles me is why my Aria, with the same apparent bias, has generally been producing what seem to be well-exposed slides for me (I do set the exposure compensation to - 1/3 stop). Or am I going about this the wrong way?
 
The G2 is a bit more center weighted than other cameras, I just learned it the hard way in Madrid when I used the same exposure compensation on my G1 and the slides from the G1 aren't as good as those from the G2 especialy in strong backlight.

3-madrid0600.jpg

G2 with Biogon 28 on Sensia 100

6-madrid0600.jpg

G1 with Biogon 28 and Elitechrome 100

Both with +1/3 exp.comp.
 
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