If all else is equal, the one stop of speed should make it easier to  
focus. I suspect that there's a problem with the lens or the camera.
Paul
On Mar 19, 2008, at 1:12 AM, Boris Liberman wrote:

> Bill, although you may be right, Joe's talking about 16-50/2.8 and we
> seem to in agreement here that 16-45/4 focuses ok. If the one stop of
> speed (16/2.8 vs 16/4) makes it or breaks it - it ain't no good...
>
> Boris
>
>
> William Robb wrote:
>> FWIW, neither my 14mm or 12-24 (at the short end) like to  
>> accurately autofocus with my K20. I
>> suspect that it relates to the focal length being so short that  
>> DOF puts it is outside the
>> resolution of the sensor. All my other lenses are fine.
>>
>> William Robb
>
>
> -- 
> PDML Pentax-Discuss Mail List
> [email protected]
> http://pdml.net/mailman/listinfo/pdml_pdml.net
> to UNSUBSCRIBE from the PDML, please visit the link directly above  
> and follow the directions.


-- 
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.

Reply via email to