Re: Movin' Up from the istD

[Peter J. Alling]

I believe it's the about same amount of processing time either way.  
Pentax PEF files each contain a small JPG thumbnail
for display.  If you're shooting JPG then the camera converts the RAW 
data to JPG and writes the JPEG to the card
and discards the RAW data.  If you're shooting RAW the camera processes 
the RAW data to a JPEG stores it in the
RAW file while it writes it to the card.  It's the write time for all 
the raw data that slows things down, not the processing.
I don't know how Canon does it but I'd bet it's the similar.  Even if 
their RAW files don't contain a reference JPEG, the camera
will still have to process the RAW data to display it on the rear 
screen, probably does it even if the screen is turned off.

Shel Belinkoff wrote:
RAW files are larger than even the largest JPEG ....
If you're taking pictures "fast" then the camera has to process a lot of
info, and will slow down.
Shel 

 

[Original Message]
From: <[EMAIL PROTECTED]>
   


 

Hmmm. Possibly it has no relation to how full the card is. Possibly it 
relates to what type of image I am saving. I really haven't been able to
   

pinpoint 
 

when exactly it happens. Could some images, containing more information
   

(RAW), 
 

take longer to save? And what type of image would that be? (More colors,
   

more 
 

details, more contrast?)
Or is that not likely to be it?
Or maybe it's when I take pictures fast, and it still hasn't finished
   

saving 
 

the previous pic. It's just sometimes that little red save light comes on
   

and 
 

stays on a fairly long time and I can't take another pic until it is
   

done. 
 

Doesn't happen all the time.
I've been equating it with a full card.
Marnie 
   


 


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I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during peacetime.
	--P.J. O'Rourke