> -----Original Message-----
> From: Joe B. [mailto:[EMAIL PROTECTED]]
> Sent: 08 October 2002 11:27
> To: [EMAIL PROTECTED]
> Subject: Re: EOS-3 +28-135
>
>
> On 08/10/02 at 11:10, [EMAIL PROTECTED] (Alex Zabrovsky) wrote:
>
...
> > EOS-3 AF abilities in low-light seems to be considerably
> lesser then these
> > of Minolta 7, and even "ancient" 800si was able to lock
> securely (after some
> > slight hunting) on the subject at which the EOS-3 wasn't
> able to lock at
> > all.
...
>
> Hmmm. I also have just traded in a Minolta 7 and am expecting
> an EOS 3 to arrive shortly. And I was hoping to use the IS
> abilities of the 28-135 in low light! It will be somewhat of
> a disappointment if I find I can't do this after all.
>
> Can you describe the light levels you had a problem with?
> What lens were you using on the Minolta/s? Can you recall
> what ISO, shutter speed and aperture you had set while you
> were experiencing this problem?
>
Joe,
Why would you not be able to use the 28-135 in low light? The 3 uses passive
auto focus, which uses differences in contrast to achieve focus. If you try
and focus on a plain white wall, in any light, AF will not succeed. I don't
know if the Minolta uses active AF, but if it sounds as though it does.
ISO, shutter speed and aperture will have absolutley no effect on the
cameras ability to AF. The only way to improve low light AF is to use a
550EX or STE-2. These use an infra-red beam to give active AF.
Steve
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