On 28 Nov 2004 at 21:40, Julian Loke wrote:

> > P.S. I've found the 17-85 to be very similar in
> > optical performance to my old 28-135 by the way, but
> > the IS is a bit quieter and seens to perform a bit
> > better.  If you were happy with the 28-135, then the
> > 17-85 is likely to make you just as happy....
> 
> Hi Gary,
> 
> I agree. The 17-85 has a newer generation Image Stabilizer
> that settles very quickly, unlike the second or so that
> was needed for the 28-135.
> 
> Besides, the normal failings of such a zoom lens shot on
> film can be simply overcome with digital manipulation in
> RAW conversion. Failings such as light falloff, colour
> cast, and even chromatic aberration can be adjusted by
> tweaking a slider on the computer.

But: is such a feature indeed implemented on any EOS DSLR?
Or: *can* the camera distinguish each and every lens? (and adjust parameters 
for it)
(just focal length is probably not enough, otherwise they wouldn't improve 
optical design within the same focal lengths....:))

OTOH, for AF it already knows quite a lot, otherwise it couldn't send the motor 
to a given position, without iteration.


--                 
Bye,

Willem-Jan Markerink

      The desire to understand 
is sometimes far less intelligent than
     the inability to understand

<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]

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