K10D v Lightroom exposure and histograms

[Rick Womer]

That's interesting.  I wonder if it's a Lightroom
quirk or a K10D quirk.  I would compare the LR
histogram to the Pentax software histogram, but alas I
lost the CD.

Rick

--- Stan Halpin <stan at stans-photography.info> wrote:

> To amplify just a bit on Godder's reply...
> 
> If you shoot a few frames as RAW+JPEG and then
> import them into LR,  
> it is easy to see at a glance which are the JPEG
> (lighter) and which  
> are the RAW (darker). I was reminded of this last
> night while  
> scrolling through way too many thumbnails to try and
> find a shot of  
> my mother-in-law that my wife needed ASAP... (Don't
> anybody mention  
> Keywords to me. I know all about them and sometimes
> even use them.  
> Just not on shots that I have any reason to look for
> later.) I came  
> across a bunch of duplicate shots, with one version
> lighter than the  
> other. It took my work- and wine-befuddled mind a
> while before I  
> realized that they were from the brief era when I
> was doing the RAW 
> +JPEG thing. (Don't ask why, I haven't a clue. It
> must have seemed  
> like a good idea at the time.) The camera does its
> magic processing  
> of RAW to JPEG, saves the result and/or puts a small
> version of it on  
> the LCD for you to view. And uses that JPEG version
> as the basis for  
> its scene analysis which yields the histogram. You
> need to do that  
> processing yourself with the RAW output. Which I
> usually find usually  
> involves adding some exposure or fill-lighting. This
> was true with  
> the *ist-D as well as the K10D.
> 
> stan
> 
> On Apr 30, 2008, at 7:34 PM, Rick Womer wrote:
> 
> > =Why= am I asking this question, just four days
> from
> > my K10D's first birthday and the expiry of its
> > warranty?
> >
> > Anyway...
> >
> > I've been looking at the histogram on the camera
> more
> > lately, and noticed that it usually does not
> > correspond to the histogram in Lightroom.
> >
> > So, I set the camera according to Godfrey's
> > recommendations of several months ago.  Not much
> help:
> >  in B&W, the image on the camera's LCD and
> histogram
> > is about 1 stop brighter than the image and
> histogram
> > that Lightroom gives me.  In color, there is more
> > variation, with the histogram (and the "blinkies")
> 0.5
> > to 1.25 stops brighter than Lightroom.
> >
> > This is something I can live with (rather than
> part
> > with my camera for two weeks, and $150!), but I'm
> > curious about whether it is typical or
> correctable,
> > either in LR or in the camera.
> >
> > Rick
> >
> >
> > http://www.photo.net/photos/RickW
> >
> >
> >        
> >
>
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