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Re: [OM] ACR in PSE 8.0 was: Who in the world writes this junk? - Raw so

Subject: Re: [OM] ACR in PSE 8.0 was: Who in the world writes this junk? - Raw software rant.
From: Jim Couch <zuikoholic@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 18 Nov 2009 08:21:03 -0800
Chuck,

Interesting, it was my understanding that ALL raw files have embedded 
JPGs as that is what is used on the display on the camera when shooting 
raw. Will have to check that out.

Jim Couch

Chuck Norcutt wrote:
> I made my comment based on statements here that ORF files do not have 
> embedded JPEGs.  Canon raw files do contain embedded JPEGs but, for a 
> 5D, the embedded JPEG at 4MP is much lower resolution than the raw file 
> at 12.7MP.  It's clear from the amount of detail visible in ACR that ACR 
> has converted the raw file for display and does not use the embedded JPEG.
>
> Chuck Norcutt
>
>
> Jim Couch wrote:
>   
>> Chuck,
>>
>> I would assume that the display is based on an embedded JPG within the 
>> ORF file, so you are right in that you are not looking at the actual raw 
>> data, but there is no conversion being done in order to open the file in 
>> the editor. The editor may create the JPG file used for display, but I 
>> don't believe that is the case. You convert the file when you are done 
>> editing. As far as I know, this is how most raw editors work - while you 
>> are working with a raw file, and the display is based on a JPG file.
>>
>> Chuck Norcutt wrote:
>>     
>>> Of course it does.  Otherwise the displayed image would be a Bayer array.
>>>
>>> Chuck Norcutt
>>>
>>>
>>> Jim Couch wrote:
>>>   
>>>       
>>>> In Master or Studio you are 'editing' the raw file, it does not have to 
>>>> be converted first.
>>>>
>>>> Jim Couch
>>>>
>>>> Chuck Norcutt wrote:
>>>>     
>>>>         
>>>>> How is it that a raw file opens directly into the editor?  Doesn't the 
>>>>> editor require a converted version?
>>>>>
>>>>> Chuck Norcutt
>>>>>
>>>>>
>>>>>       
>>>>>
>>>>>           
-- 
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