On Tue, 19 Jul 2005, Powell Hargrave wrote:
There is usually some change in the image which causes the difference.  In
this image I would suggest the bright area to the right of her eyes caused
the first to cut back the exposure as the camera attempts to keep some
detail there.  In the second this is blocked.  Both images are usable and
you can always operate the camera in manual or with centre weighted metering.

Absolutely, particularly the last sentence.

Kostas (I did not, chop off Shel's headers below)

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




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