PPL conversion questions...

FHPhotographer · 12-08-2008, 12:06 AM

I had never used Pentax Photo Lab, it just seemed easier to convert RAW files using the slick Bridge-PS3 interface. And I assumed it didn't matter what converter was used, that conversion was conversion was conversion and they'd all look the same.

However, I just tried auto conversion in PPL and ACR on the same image , and damned if the PPL conversions don't vary by in-camera settings and both vary from the ACR auto conversion. What's going on? I thought except for WB, in RAW in-camera settings were ignored? But PPL uses them doesn't? And ACR applies settings different from the PPL (brightness, etc) but doesn't use the in-camera settings?

Brian (FHPhotographer)

Samples below:
#1, PPL with 000 settings

#2, PPL with -2 Saturation, +1 Sharpness and Contrast

#3 ACR

Wheatfield · 12-08-2008, 06:57 AM

I believe the in camera settings are used as the "default conversion" setting in Photolab.

Ole · 12-08-2008, 07:32 AM

Another difference is the color profile applied to the conversion. The color profile corrects for camera model specific colorcasts. Adobe develops their own profile for the Pentax models. For some models they also provide access to the Pentax profile.

FHPhotographer · 12-08-2008, 12:33 PM

Originally posted by Ole

Another difference is the color profile applied to the conversion. The color profile corrects for camera model specific colorcasts. Adobe develops their own profile for the Pentax models. For some models they also provide access to the Pentax profile.

I think you and Wheatfield are correct. Trying another set, I can now see that the Pentax "tone" is also part of the PPL default, i.e., the second image above with the in-camera settings of -2,+1 +1 is different in bright than in natural.

When you add in-camera WB, plus the three image settings modified by two tone curves, there is a significant range of RAW files in PPL that doesn't show up in "auto" ACR.

So, this equals in-camera jpeg settings control with the benefit of all the RAW data? There's probably some eteranl debate here about controlling the image in-camera or post-processing.

Thanks for the feedback,
Brian

ddhytz · 12-08-2008, 02:57 PM

Originally posted by FHPhotographer

... And I assumed it didn't matter what converter was used, that conversion was conversion was conversion and they'd all look the same...

Actually, they look very different if you use their default settings. PPL is quite powerful in terms of raw conversion. I like the colors from PPL although its user interface is not as good as others.

axl · 12-08-2008, 04:21 PM

I have been trying to figure this one out for a while now. I agree with Ole, wheatfield and ddhytz.
It DOES matter a lot which RAW conversion program do you use! I was comparing following:
K10D in camera JPEG
PPL bright and natural separately
ACR from CS3
and ACR from Lightroom 2!
I like the colours best from the PPL in bright but all settings zeroed! Lightroom 2 comes pretty close and has MUCH better interface. As for CS3, I could never get good looking picture from it's ACR.
It's a propper maze to navigate, but once you'll find what suits you best it's going to get much easier...
good luck

12-08-2008, 12:33 PM	#4
FHPhotographer Veteran Member Join Date: Jul 2008 Location: Fountain Hills, AZ Photos: Gallery \| Albums Posts: 1,297 Original Poster	OP response Originally posted by Ole Another difference is the color profile applied to the conversion. The color profile corrects for camera model specific colorcasts. Adobe develops their own profile for the Pentax models. For some models they also provide access to the Pentax profile. I think you and Wheatfield are correct. Trying another set, I can now see that the Pentax "tone" is also part of the PPL default, i.e., the second image above with the in-camera settings of -2,+1 +1 is different in bright than in natural. When you add in-camera WB, plus the three image settings modified by two tone curves, there is a significant range of RAW files in PPL that doesn't show up in "auto" ACR. So, this equals in-camera jpeg settings control with the benefit of all the RAW data? There's probably some eteranl debate here about controlling the image in-camera or post-processing. Thanks for the feedback, Brian

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12-08-2008, 12:06 AM	#1
FHPhotographer Veteran Member Join Date: Jul 2008 Location: Fountain Hills, AZ Photos: Gallery \| Albums Posts: 1,297	PPL conversion questions... I had never used Pentax Photo Lab, it just seemed easier to convert RAW files using the slick Bridge-PS3 interface. And I assumed it didn't matter what converter was used, that conversion was conversion was conversion and they'd all look the same. However, I just tried auto conversion in PPL and ACR on the same image , and damned if the PPL conversions don't vary by in-camera settings and both vary from the ACR auto conversion. What's going on? I thought except for WB, in RAW in-camera settings were ignored? But PPL uses them doesn't? And ACR applies settings different from the PPL (brightness, etc) but doesn't use the in-camera settings? Brian (FHPhotographer) Samples below: #1, PPL with 000 settings #2, PPL with -2 Saturation, +1 Sharpness and Contrast #3 ACR

12-08-2008, 06:57 AM	#2
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,981	I believe the in camera settings are used as the "default conversion" setting in Photolab.

12-08-2008, 07:32 AM	#3
Ole Administrator Join Date: Sep 2006 Location: Copenhagen, Denmark Photos: Gallery \| Albums Posts: 4,408	Another difference is the color profile applied to the conversion. The color profile corrects for camera model specific colorcasts. Adobe develops their own profile for the Pentax models. For some models they also provide access to the Pentax profile.

12-08-2008, 02:57 PM	#5
ddhytz Veteran Member Join Date: Sep 2007 Location: Melbourne Posts: 602	Originally posted by FHPhotographer ... And I assumed it didn't matter what converter was used, that conversion was conversion was conversion and they'd all look the same... Actually, they look very different if you use their default settings. PPL is quite powerful in terms of raw conversion. I like the colors from PPL although its user interface is not as good as others.

12-08-2008, 04:21 PM	#6
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	I have been trying to figure this one out for a while now. I agree with Ole, wheatfield and ddhytz. It DOES matter a lot which RAW conversion program do you use! I was comparing following: K10D in camera JPEG PPL bright and natural separately ACR from CS3 and ACR from Lightroom 2! I like the colours best from the PPL in bright but all settings zeroed! Lightroom 2 comes pretty close and has MUCH better interface. As for CS3, I could never get good looking picture from it's ACR. It's a propper maze to navigate, but once you'll find what suits you best it's going to get much easier... good luck