"David J Taylor" wrote in message
...

"Dudley Hanks" wrote in message
news:IQULn.5311$z%6.2582@edtnps83...
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In my case, my SX120 has a f/2.8 IS lens and an ISO 3200 setting which
help it outperform my XSi in certain low-light situations, since I don't
have a large-apertured, long focal-length lens for the XSi.

Nor do you with the SX120 - at its longest focal length (60mm, 360mm
equivalent), it's f/4.3, not f/2.8.

The ISO 3200 image I found with a quick search was not full resolution,
but 1600 x 1200.

Cheers,
David

I was wondering when somebody would point that out...

My only lenses for the XSi are either 3.5 - 5.6 or 4.0 - 5.6, so the f/2.8 -
4.3 is still larger, even at long focal lengths...

As for the ISO 3200 not producing the full resolution, that would only be a
problem if I intended to produce low light, large format prints, which I
obviously would not, and the image size is plenty big enough for posts to
Usenet, my site, etc...

I forgot to put the smaller end of the aperture range, as I do not shoot at
full zoom very often. Most of my pics are at the shorter to mid focal
length of the 36 to 360mm lens. So, even at 3.5 for about 180mm, the
aperture is as large as the lowend of my other lenses, which seems like a
large aperture zoom to me...

Take Care,
Dudley