ACR 3.7 corrupted a K10D PEF?

[Mark Erickson]

Godfrey, 

No jumping, just a question.  P.J. actually suggested that there might have 
been a "glitch" in the camera. 

I was hoping that I wouldn't have to upgrade to CS3, but Adobe stopped 
releasing ACR updates for CS2 at V3.7.  Bummer. 

 --Mark 

Godfrey DiGiorgi wrote: 

>Why would you infer a camera problem given the behavior of format  
>conversion error by Camera Raw? Do you have other files that behave  
>the same way? 
>
>Camera Raw v3.7 and Lightroom 1.0-1.2 failed for quite a while to  
>read PEF files I created with the K10D. It seemed to happen with  
>photos made when I was pointing the camera straight down more of the  
>time. I thought it was a camera problem. However, PPL would read them  
>and output an uncompressed DNG file, which was then readable by  
>Camera Raw/DNG Converter up to v4.2 or Lightroom up to up to 1.2. 
>
>I hadn't noticed that in all cases the PEF files were > 16M in size.  
>When Lightroom v1.3 appeared (Camera Raw/DNG Converter v4.3), the  
>problem disappeared. I conclude it was a software error in the Adobe  
>code that limited the ability to process PEF files larger than a 16M  
>size. Nothing to do with the camera. 
>
>Don't jump to conclusions. :-) 
>
>Godfrey 
>
>On Feb 18, 2008, at 10:31 AM, Mark Erickson wrote: 
>
>> Hmmmm, 
>>
>> So William Robb opened the PEF with ACR 4.3.1 with no problems.   
>> Did you try
>> to convert it to DNG then open the DNG? 
>>
>> Godfrey opened the PEF with ACR 3.7, then saved it as a DNG with no
>> problems.  That's what didn't work right on my computer.  Seems to  
>> indicate
>> that I have a problem with my installation of ACR 3.7. 
>>
>> P.J. couldn't read the PEF with either Raw Shooter Essentials or  
>> the Pentax
>> Photo Browser. 
>>
>> Hmmmm.  Three people, three different results (four if you include  
>> me).
>> Question is, do I have a bad K10D? 
>>
>> Any more thoughts? 
>>