Pentax Digital Camera Utility Help

mcut
Posted 18/11/2011 - 14:53 Link
I know a lot of people will be using other editing programs but wonder if someone can assist me with the following questions about the K5 supplied software:-


1. if i have the DNG file on my screen and simply add it to process queue without any alterations and then hit ok from image process queue will it create a jpeg exactly as the camera would have created a jpeg, and

2. my understanding (which may be subject to error) of when a camera creates a jpeg from a raw file is that one of the things that it does is create a tone curve, why when i open a jpeg in PDCU is the curve flat, when i process a DNG is a tone curve being created at all or is that one of the things i am supposed to be doing myself as a matter of routine.

3. Is "extract jpeg" used when you have made alterations to just provide a preview image of what the final jpeg should look like

4. if i have a histogram where there is no data at one end, should i be dragging the arrows in the exposure pane curve to cause the histogram to have data spread evenly. (this question may not make sense!) i have used other software that allows levels adjustments, dragging the sliders to the black and white points. what should i be doing in PDCU instead?

5. i am assuming i will find a set of adjustments that i will like to be generally applied to my photos and then save those adjustments as a parameter?

Regards

Mark
mcut
Posted 20/11/2011 - 12:43 Link
Bump. Anyone?
ChrisA
Posted 20/11/2011 - 13:08 Link
mcut wrote:
4. if i have a histogram where there is no data at one end, should i be dragging the arrows in the exposure pane curve to cause the histogram to have data spread evenly. (this question may not make sense!) i have used other software that allows levels adjustments, dragging the sliders to the black and white points. what should i be doing in PDCU instead?
Just as with the levels control in PhotoShop, whether you move the sliders in to boost the brights and darken the darks is entirely down to you - if enhancing the contrast like that is what you want, then fine, but it shouldn't be a default action regardless of the content.

There are plenty of low contrast images that are supposed to be that way.
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Pentax K-3, DA18-135, DA35 F2.4, DA17-70, DA55-300, FA28-200, A50 F1.7, A100 F4 Macro, A400 F5.6, Sigma 10-20 EXDC, 50-500 F4.5-6.3 APO DG OS Samsung flash SEF-54PZF(x2)
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ChrisA
Posted 20/11/2011 - 13:11 Link
mcut wrote:
1. if i have the DNG file on my screen and simply add it to process queue without any alterations and then hit ok from image process queue will it create a jpeg exactly as the camera would have created a jpeg,
Not 100% sure, but it does appear that if I load an image into the utility, it comes in with the same settings for contrast, sharpness etc as the camera is set to.

So I expect that if you develop it to JPG without any additional changes, it would be as you say.
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Pentax K-3, DA18-135, DA35 F2.4, DA17-70, DA55-300, FA28-200, A50 F1.7, A100 F4 Macro, A400 F5.6, Sigma 10-20 EXDC, 50-500 F4.5-6.3 APO DG OS Samsung flash SEF-54PZF(x2)
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mcut
Posted 21/11/2011 - 09:45 Link
thanks chris.

anybody able to assist with my questions 2 and 5

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