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12-03-2011, 03:45 PM   #16
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The supplied Pentax software PDCU is FREE -
hard to see any disadvantage in just trying it out.....

caveat: I do not use RAW regularly -
but have experience using and testing RAW processors.

I absolutely acknowledge - I do not have the longer experience of other RAW users here.

However I have found from my usage/tests that the PDCU is actually tailored/tuned for Pentax dSLRs -
very few, if any, other RAW processors have that feature -
that alone is HUGE.

The simplest of tests is to take a paired RAW(DNG)/JPG shot of your own typical scene -
then use the RAW processor to match the JPG.

Typically I have found that PDCU does this as the default setting (camera setting) -
so it's basically a single click and that's done.

Other RAW processors on their default settings will normally show some variation from the paired JPG.

I know...
who'd want to match the JPG?

BUT if the argument is that RAW is so much more flexible/powerful -
then why is it so d*mn hard to match that humble JPG?

Well, simply because the other RAW processors do not fully understand the Pentax dSLR -
no matter what they may claim -
otherwise it'd be easy to match the JPG wouldn't it?

Whereas PDCU demonstrates quite clearly it can be done, and does it as default.

Obviously this alone is not enough to use only PDCU -
there are many other features that other RAW processors have, and may well do better.

But the point is PDCU does one thing better than any other RAW processor I know -
and that is it understands Pentax images -
and in PDCU one can almost replicate any camera setting/variation that one wish.

To show the power of PCDU I posted an experiment and challenge
starting in Post #101 and post #103

on page: 7 of Modern LED Stage Lighting & photography problems

(FWIW - see the mess one could get in Post #105)

The current software is Pentax DCU (Digital Camera Utility) 4.3.4 -
can't seem to see s/w downloads on the USA site ( -
but it is on the Japan site (for Windows)

Summary - Pentax DCU is well worth trying
and even if it doesn't end up as one's mainstream processor
it's worth keeping around and updated for those really awkward photos.

Last edited by UnknownVT; 12-03-2011 at 04:00 PM.
12-03-2011, 03:53 PM   #17
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Original Poster
I'll give it a go and take it from there! Thanx for all the replies.
12-03-2011, 07:40 PM   #18
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Location: So California
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I use PDCU for file handing - chimping, adding descriptions to file names, and moving files - if it does not freeze. I also use it to save the exif data to a database. For processing raw files, I use Elements which seems much friendlier and has a few tools Pentax did not when I started with it.
12-03-2011, 09:44 PM   #19

Join Date: Nov 2009
Location: WA
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I like PDCU - it's a great tool that provides me with all I need for RAW processing. Why would I want to use someone else's algorithms instead of Pentax's ones? The PPB tool that came with the K10D had stability issues and could crash from time to time, but I had no issues with the recent PDCU releases - they work perfectly well.


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