> Hi Fred,
>
> Isn't this the case for E-TTL II, not for the
> original E-TTL?
> The new version uses the distance information
> provided
> with some lenses (mostly ring USM) and reverts to
> standard
> E-TTL with other lenses.
Although I am no expert in E-TTL II, but from what I
have read so far, it seems to me that flash metering
in E-TTL II is different (ie uses a new or improved
way of calculating required flash exposure) from ETTL
even in the absence of distance information. If that
is true, then it would be incorrect to say that E-TTL
II reverts to ETTL in the absence of distance
information. Just my .02
Thanks,
- Harman
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