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09-26-2012, 05:02 PM   #1
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Location: St Louis Mo
Posts: 22
Solution for kr tungsten light autofocus problem

This was posted in the other forum, but quickly died. Does anyone know more about this? If there is truely a solution, I would think it would be idely known by now.

Dear All,
Firstly please let me thank you all for your cooperation on my subject.
I really confused what should I do? finally I called to Pentax company in Japan. When I described my K-r's problem, the technician asked me my e-mail address and after about 3 days he sent me a solution which it works completely. I tested it for several times in different low light conditions and my problem completely disappear. Since this method helped me, I decided to share it with others to help them if they have the same problem like me.
This is Pentax answer:
Resetting the Menus(text P310)
Select [Reset]in the [Set-up3]menu and press the four-way controller.
Press the four-way controller to select [Reset] and press the OK button.
Resetting the Custom Menu(text P311)
Select [Reset Custom Functions] in the [Custom Setting4]menu and press
the four-way controller.
Press the four-way controller to select [Reset] and press the OK button.
Detach the lens, hold down the lens unlock button, and turn the lens
Align the lens mount index(red dots) on the camera and the lens, and
secure by turning the lens clockwise until it clicks.
Set the mode dial to [P]
Set the focus mode lever to [AF].
Press the INFO button in the status screen.
Use the four-way controller to select [AF Mode] and press the OK
Use the four-way controller to select an AF mode(AF.S).
Press the Ok button.
(P126)Use the four-way controller to select [Select AF Point] and press the
OK button.
Use the four-way controller to select a focusing area(Spot)
Press the Ok button.
Look through the viewfinder to view the subject.
Position the subject inside the AF frame, and press the shutter release
button halfway.
Press the shutter release button fully.
After taking pictures, Press the playback button.
Please check your pictures on your camera or PC.

09-26-2012, 06:36 PM   #2
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GabrielFFontes's Avatar

Join Date: Jul 2011
Location: Rio de Janeiro, Brazil
Posts: 647
Seems like a factory reset, and i saw that in a dpreview post as well. The poster said it solved his problem.
Since i don't have my K-r anymore i can't test. Others might help more.

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