It appears that a reflected background highlight was momentarily much
brighter in the upper shot. That changed the exposure. If I'm shooting
against a background like this, I frequently use spot metering. Of
course either of these exposures could be dialed in quite nicely if
they were shot RAW.
Paul
On Jul 19, 2005, at 11:43 PM, Shel Belinkoff wrote:
http://home.earthlink.net/~my-pics/2up.jpg
Just nine seconds separate these two pics. They are almost identical
shots. Both were made with the istDs, both at a rating of 3200 ISO,
both @
70mm, both at an aperture of 5.6, both using multi-segment metering,
both
using auto focus (more on that later!), both on one of the automatic
modes,
yet they are a stop apart, with the top pic made @ 1/30 sec and the
bottom
@ 1/15.
What crummy results these are. The pics, imo, should have an identical
exposure. They would were a funky old manual camera body being used.
Is
this the kind of erratic results one can expect from high-tech
cameras, or
is there some sort of failure to communicate or understand on my part?
Why
would these pics be so far apart in their results?
Shel