two different cameras on auto. why select different ISOs

Started Aug 20, 2012 | Discussions thread
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fare Regular Member • Posts: 163
two different cameras on auto. why select different ISOs

I've got a Nikon d5100 and a sony a65.

took a pic indoors in a fairly dim lit room with both cameras on auto with auto flash on both. Sony pic was much clearer, sharper colors, and brighter.

Both cameras selected the same shutter speed, same aperture.

But, the Sony a65 shot a an ISO of 400.
The Nikon d5100 shot at 3200.

I took another pic with a little more light. Again, both selected the same aperture, same shutter speed. And, again, the Nikon shot a high ISO of 1100 while the Sony selected 400 again.

Can some of you gurus help me to figure out why???

Why the different ISO selections. Did the Sony give me the right number. It shot a lower ISO and gave brighter pics.


Nikon D5100 Sony SLT-A65
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