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[OM] Re: [OM] Is AF *really* used? 

Subject: [OM] Re: [OM] Is AF *really* used? 
From: "Ulf Westerberg" <ulf.westerberg@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 16 Sep 1998 21:20:21 +0200
Mark Hammons wrote:
<snip>
>It turns out he uses the Canon EOS system as his own system
>and when I told him I had an OM system he said that what he likes better
>about the EOS is that when he uses manual focus that it is faster, because
>there is virtually no resistance in the lens to rotating the focusing ring
>( which is true ).  I wonder if that is a "feature" that is really and
advantage
>or not -- as it seems to me you want a little resistance so that the lens
holds
>its focus once set.

There are some manual focus lenses on the market with no resistance at all.
I've owned one, the Sigma APO 400/5.6. I was never satisfied with this, as
it is very, very easy to rotate too far, eventually you end up adjusting and
re-adjusting all the time, it just doesn't snap as my 300/4.5 does.
One if the real advantages of manual focus lenses is the resistance, heck, I
even think Nikon has made an autofocus lens with a switch for manual focus
feel! (Any others can fill in?)

I think the salesman was in really deep water here.

Ulf Westerberg



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