Digital BW, The Print

Ed, I've had dozens of zoom lenses over the years, Nikon, Canon, Tokina, 
Sigma, Leica, etc. NONE maintained
sharpness if you focused at the wide angle position, and then zoomed way 
in. (However the Autofocus will refocus
for you), but if you were in manual mode, it just didn't work.

Jerry



Edward Wiseman wrote:
> Your image will stay in focus if you are using a TRUE ZOOM..If you are using
> a VARI-FOCAL LENS (confusingly still referred to as a "ZOOM") you WILL have
> to re-focus as you zoom..
> 
> Eddie Wiseman
> ----- Original Message -----
> From: "digikdm" <monroekd@...>
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Sent: Wednesday, April 09, 2003 9:20 AM
> Subject: [Digital BW] FOCUS QUESTION
> 
> 
> 
>>Here is a question that no one in my office can answer.
>>If you are taking a pic of someone 10 feet away, is focus maintained
>>if you ZOOM-in to fine tune the focus and then ZOOM back out to take
>>the pic? This is assuming the camera is in manual rather than
>>autofocus mode.
>>
>>
>>
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