No, with 1 touch zooms, the push pull
is almost always for zooming not focus.
Focus is achieved by twisting the 1 ring.

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J.C. O'Connell (mailto:[email protected])
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Eric
Weir
Sent: Saturday, July 17, 2010 5:24 PM
To: Pentax-Discuss Mail List
Subject: Re: 2 touch?



On Jul 17, 2010, at 4:08 PM, Adam Maas wrote:

> A two-touch lens has a zoom ring and a focus ring where as a 1-touch 
> lens has push-pull zoom and traditionally the push-pull portion 
> functions as the focus ring for manual lenses

Thanks, Adam. Also Bob and Ecke.

----------------------------------------------------------------------------
--------------
Eric Weir
Decatur, GA  USA
[email protected]





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