wrote:

You misunderstood; there is nothing wrong with the metering in this
scenario. The scene had the approximate reflectivity of a grey card.

No, there was; if the meter indicates one stop underexposure, but you can
increase three stops and end up with a proper exposure, then the meter was
actually off by two stops. You're comparing "trust the meter" at ISO 200
with "don't trust the meter" at ISO 800, and that's not a useful
comparison, because if you trusted the meter in the first situation
you'd trust it in the second and still underexpose by two stops, but if
you weren't going to trust the meter in the first place (and thus be
willing to go up two more stops from what it said at ISO 800) then you'd
have been willing to do so at ISO 200, too, if you could -- leaving the
choices being either underexpose at 200 or expose properly at 800.

Do the Canons really make you use full-stop increments??

For ISO? Yes, the ISOs are 100, 200, 400, 800, 1600, 3200 On the
non-1-series cameras.

Ah, so it's one of those "held back" features. Annoying how they use
(seemingly) simple features to convince you to spend more money.

--
Jeremy |