It's a Henry's isn't it? My K-3 came from the unfashionable Brampton
store where they had one counter-width devoted to Pentax. Quite well
represented, I thought.


On Wed, Mar 19, 2014 at 7:39 PM, David J Brooks <pentko...@gmail.com> wrote:
> Not even sure this store stocks Pentax cameras, i'll find out Sat
>
> On Wed, Mar 19, 2014 at 7:05 PM, Bruce Walker <bruce.wal...@gmail.com> wrote:
>> One last thought: make sure you clean the mount contacts really
>> thoroughly. And did you try it on another camera body besides your
>> own?
>>
>>
>> On Wed, Mar 19, 2014 at 6:58 PM, David J Brooks <pentko...@gmail.com> wrote:
>>> Inside and outside. Inside 2 may be 3 seconds  to get in focus. out
>>> side 1-2 seconds
>>> Another is on order for Sat if its still the same i'll get them to
>>> order me the Sigma 17-70 2.8-4 the PF review is good
>>> Even sales man said its to slow
>>>
>>>
>>> Dave
>>>
>>> On Wed, Mar 19, 2014 at 6:53 PM, Bruce Walker <bruce.wal...@gmail.com> 
>>> wrote:
>>>> What kind of light was illuminating your subject? How contrasty was it?
>>>>
>>>> Try AF outdoors.
>>>>
>>>> When working correctly on the K20D, SDM can focus in something like
>>>> 0.2 seconds. But in reduced light you can count on many seconds --
>>>> while the smile fades from your portrait subject ...
>>>>
>>>> This all improves quite noticeably on the K-3. But really low light
>>>> still causes problems that I solve by switching to MF.
>>>>
>>>>
>>>> On Wed, Mar 19, 2014 at 6:43 PM, David J Brooks <pentko...@gmail.com> 
>>>> wrote:
>>>>> Could be, i mostly tried it at 650-70 length. It was and i', m not
>>>>> exagerating at least 2-3 if not more seconds to focus. You could see
>>>>> it in th efinder getting closer and closer and hey there ist in focus.
>>>>> Not sure i want something i need to just hold and hope.
>>>>>
>>>>> Dave
>>>>>
>>>>> On Wed, Mar 19, 2014 at 6:31 PM, Dario Bonazza
>>>>> <dario.bona...@virgilio.it> wrote:
>>>>>> Well, the DA* 50-135mm SDM is probably the slowest AF lens on Earth, 
>>>>>> gaining
>>>>>> it the nickname of "the sloth". Generally speaking, SDM lenses are slower
>>>>>> than both screw-driven ad DC Pentax AF lenses, so the DA 17-70mm is a 
>>>>>> good
>>>>>> candidate for being another slow-AF lens. However, I own it and I don't 
>>>>>> find
>>>>>> it THAT slow as you pointed out.
>>>>>> There is however another problem I saw on several samples of that lens 
>>>>>> and
>>>>>> is the almost impossibility to autofocus above 50mm focal length, hunting
>>>>>> forever while you try & find the focus. Perhaps that's the problem you
>>>>>> spotted.
>>>>>>
>>>>>> Dario
>>>>>>
>>>>>> -----Messaggio originale----- From: David J Brooks
>>>>>> Sent: Wednesday, March 19, 2014 11:17 PM
>>>>>> To: Pentax Discuss
>>>>>> Subject: Pentax 17-70 f4 and SDM motor question
>>>>>>
>>>>>>
>>>>>> Hi all
>>>>>>
>>>>>> I went to pick up above mentioned lens this afternoon. loks and feel
>>>>>> nice on the K-5, however me thinks there is a problem.
>>>>>> I know the AF of Canon and Nikon are quite fast leaving us Pentaxians
>>>>>> hunting and pecking our way through landscapes and soccer photos, BUT,
>>>>>> 2-3 seconds to lock on and focus on a static object.?? Me thinks
>>>>>> that's a bit to slow.
>>>>>> The salesman and i played with it for 10-15 minutes. It did get a tad
>>>>>> faster to focus but it was still painfully slow. I know it will not be
>>>>>> as snappy as my Nikon 70-200 f2,9 VR lens, you can barely hear
>>>>>> anything and it locks on faster than  Mike Johnson deleting  a cat
>>>>>> photo.
>>>>>>
>>>>>> So, am i missing something with this SDM system. Is it painfully slow
>>>>>> or should it be as fast or faster to AF on a subject as the screw
>>>>>> focus lenses. Do i need to adjust a menu setting or something.
>>>>>>
>>>>>> Another is on order for Saturday
>>>>>>
>>>>>> Dave
>>>>>>
>>>>>> --
>>>>>> Documenting Life in Rural Ontario.
>>>>>> www.caughtinmotion.com
>>>>>> http://brooksinthecountry.blogspot.com/
>>>>>> York Region, Ontario, Canada
>>>>>>
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>>>>>>
>>>>>> -----
>>>>>> Nessun virus nel messaggio.
>>>>>> Controllato da AVG - www.avg.com
>>>>>> Versione: 2013.0.3462 / Database dei virus: 3722/7216 -  Data di 
>>>>>> rilascio:
>>>>>> 19/03/2014
>>>>>>
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>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Documenting Life in Rural Ontario.
>>>>> www.caughtinmotion.com
>>>>> http://brooksinthecountry.blogspot.com/
>>>>> York Region, Ontario, Canada
>>>>>
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>>>>
>>>>
>>>> --
>>>> -bmw
>>>>
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>>>
>>>
>>>
>>> --
>>> Documenting Life in Rural Ontario.
>>> www.caughtinmotion.com
>>> http://brooksinthecountry.blogspot.com/
>>> York Region, Ontario, Canada
>>>
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>>
>> --
>> -bmw
>>
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>
>
>
> --
> Documenting Life in Rural Ontario.
> www.caughtinmotion.com
> http://brooksinthecountry.blogspot.com/
> York Region, Ontario, Canada
>
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-- 
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