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Re: [OM] Wide Range Zooms - any good ?

Subject: Re: [OM] Wide Range Zooms - any good ?
From: "John A. Lind" <jlind@xxxxxxxxxxxx>
Date: Sat, 06 Apr 2002 12:14:51 -0500
At 21:04 4/5/02, you wrote:
Isn't this the lens that is speculated to by the same as the Zuiko (i.e.
Olympus outsourced the 35-105).

Tom

I don't think so . . .

The "Close Focus" rings turn in the *opposite* directions. On the Zuiko, this is the equivalent of about a 5mm extension tube; don't know what it does on the Tokina. There would be *no* reason for a lens maker to expend the money tooling up to make two precision helicals that work in opposite directions for complex lens barrels like this, one for their own name and the other for an OEM, that work in opposite directions.

My *guess*? A little reverse engineering of the mechanicals by Tokina plus sufficient modification to keep out of trouble [patent(s) ??] with Olympus along with other changes to make it less expensive. This is done much more often than many people think.

-- John


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