Canon 300D FEL

Colin D wrote:

the underexposed shot with evaluative metering and paper over the flash,
which leads me to think that the paper towel was upsetting the light
distribution, causing the evaluative metering to shorten the exposure.

Thanks for that Colin, the results are what I was seeing. I wonder if
there is something in the E-TTL formula that assumes a certain
power:light ratio for direct flash?

Your other post re the test pictures make perfect sense, I think maybe
my brain is too used to thinking about light in the simplified world of
ray tracing ;(

At least I know that if necessary I can diffuse the built-in flash and
get good results from FEL if I take a reading from a sensible part of
the frame.

--
Thanks again,

Andy