DNG K20D (differences in types of?)

augustmoon · 04-06-2008, 03:55 PM

I am using Lightroom 1.3.1 on Mac (didn't jump on the 1.4 upgrade while it was briefly up)...

My question is... what type of DNG gives better results in this workflow (if any?) When I shoot DNG from the cam, I get a file about 23.1mb, when I shoot PEF and save the PEF as a DNG out of Pentax Browser, I get a file about 30.4mb, that same PEF converted into a DNG, using Adobe DNG converter (which can queue and do batch) the resulting DNG files are the same size as the PEF, around 13mb. Is Pentax Browser adding anything to the file, or converting it intermediary before making a PEF? Just curious...

Brian

davemdsn · 04-07-2008, 07:55 PM

I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer.

augustmoon · 04-07-2008, 08:15 PM

Originally posted by davemdsn

I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer.

OK, thank you, I appreciate your response. One less piece of software, on less step, saves time and HD space.

Makes perfect sense.

I wasn't even thinking that the larger DNG out of Pentax Browser might be because the original PEF is getting embedded. I remember now that Adobe DNG converter gives you the option to embed the original RAW in the DNG as well resulting in a larger DNG.

Thanks
Brian

a a i b · 04-07-2008, 09:18 PM

Originally posted by davemdsn

I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer.

I saw a timeshifting problem (somehow, the wrong time was written in the PEF conversion) -- have you seen this problem?

davemdsn · 04-08-2008, 07:35 AM

The windows version of the Adobe Converter 4.4 was broken. It was recalled just like Lightroom 1.4. They are supposed to be releasing a 4.4.1 in the very near future to correct the problem. I had thought it would be out by now. I think Adobe is spending too much time on Lightroom 2, which I am not even interested in. They should fix current programs before working on new ones.

a a i b · 04-08-2008, 09:18 AM

^I work on a mac, where I saw the timeshift problem with Adobe DNG Converter 4.4.

davemdsn · 04-08-2008, 11:17 AM

Really? Adobe claimed that the problem was isolated to the Windows version. I am also on a Mac and haven't noticed a change in time stamp with my K20, but I think I did with my K10 the other day. I wrote it off as user error at the time, but will have to check it more carefully now. Odd that I got the error with the earlier camera and not the newer one.

augustmoon · 04-08-2008, 12:15 PM

Scroll down to the March 16th Entry:

Lightroom Journal

They speak of an EXIF Time Stamp Error in Lightroom and also in Camera Raw. They didn't mention the EXIF Time Stamp Error in DNG Converter specifically, but since it was a part of the same release, I'm thinking it is using part of the same code. Anyway, I am using the previous version of DNG Converter and don't notice a time stamp error.

augustmoon · 04-08-2008, 12:25 PM

Oh, yes, and it does seem strange that they would be spending so much energy on a new version (2.0) at the same time as an upgrade to the current version. I can't imagine how that team can go in two different directions at the same time, seems like it would make more sense, if they want to spend time to come up with a new version (2.0) is to offer a simple update to the current version that keeps everything relatively the same, but just fixes bugs and adds support for the newer cameras.

Eduardo Aigner · 05-03-2008, 04:32 AM

Originally posted by a a i b

^I work on a mac, where I saw the timeshift problem with Adobe DNG Converter 4.4.

Same here. Mac Leopard, DNG Converter 4.4.1. The image time goes wrong for 6 hours....

04-06-2008, 03:55 PM	#1
augustmoon Inactive Account Join Date: Mar 2008 Location: Toronto, San Diego, Seattle Posts: 455	DNG K20D (differences in types of?) I am using Lightroom 1.3.1 on Mac (didn't jump on the 1.4 upgrade while it was briefly up)... My question is... what type of DNG gives better results in this workflow (if any?) When I shoot DNG from the cam, I get a file about 23.1mb, when I shoot PEF and save the PEF as a DNG out of Pentax Browser, I get a file about 30.4mb, that same PEF converted into a DNG, using Adobe DNG converter (which can queue and do batch) the resulting DNG files are the same size as the PEF, around 13mb. Is Pentax Browser adding anything to the file, or converting it intermediary before making a PEF? Just curious... Brian

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04-07-2008, 07:55 PM	#2
davemdsn Inactive Account Join Date: Oct 2006 Location: Boise, Idaho Photos: Gallery \| Albums Posts: 1,413	I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer.

04-07-2008, 08:15 PM	#3
augustmoon Inactive Account Join Date: Mar 2008 Location: Toronto, San Diego, Seattle Posts: 455 Original Poster	Originally posted by davemdsn I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer. OK, thank you, I appreciate your response. One less piece of software, on less step, saves time and HD space. Makes perfect sense. I wasn't even thinking that the larger DNG out of Pentax Browser might be because the original PEF is getting embedded. I remember now that Adobe DNG converter gives you the option to embed the original RAW in the DNG as well resulting in a larger DNG. Thanks Brian

04-07-2008, 09:18 PM	#4
a a i b Veteran Member Join Date: Jan 2008 Location: Brooklyn Photos: Gallery Posts: 315	Originally posted by davemdsn I shoot PEF and use the Adobe converter to get my DNG. Smallest file on the card, smallest file on the HD. There is no difference in the image portion of the file, only in the compression used. The Pentax software may be embedding the PEF into the DNG. Not sure, but that file size seems really high so that might be why. I can't stand the Pentax software so I don't even have it loaded on my computer. I saw a timeshifting problem (somehow, the wrong time was written in the PEF conversion) -- have you seen this problem?

04-08-2008, 07:35 AM	#5
davemdsn Inactive Account Join Date: Oct 2006 Location: Boise, Idaho Photos: Gallery \| Albums Posts: 1,413	The windows version of the Adobe Converter 4.4 was broken. It was recalled just like Lightroom 1.4. They are supposed to be releasing a 4.4.1 in the very near future to correct the problem. I had thought it would be out by now. I think Adobe is spending too much time on Lightroom 2, which I am not even interested in. They should fix current programs before working on new ones.

04-08-2008, 09:18 AM	#6
a a i b Veteran Member Join Date: Jan 2008 Location: Brooklyn Photos: Gallery Posts: 315	^I work on a mac, where I saw the timeshift problem with Adobe DNG Converter 4.4.

04-08-2008, 11:17 AM	#7
davemdsn Inactive Account Join Date: Oct 2006 Location: Boise, Idaho Photos: Gallery \| Albums Posts: 1,413	Really? Adobe claimed that the problem was isolated to the Windows version. I am also on a Mac and haven't noticed a change in time stamp with my K20, but I think I did with my K10 the other day. I wrote it off as user error at the time, but will have to check it more carefully now. Odd that I got the error with the earlier camera and not the newer one.

04-08-2008, 12:15 PM	#8
augustmoon Inactive Account Join Date: Mar 2008 Location: Toronto, San Diego, Seattle Posts: 455 Original Poster	Scroll down to the March 16th Entry: Lightroom Journal They speak of an EXIF Time Stamp Error in Lightroom and also in Camera Raw. They didn't mention the EXIF Time Stamp Error in DNG Converter specifically, but since it was a part of the same release, I'm thinking it is using part of the same code. Anyway, I am using the previous version of DNG Converter and don't notice a time stamp error.

04-08-2008, 12:25 PM	#9
augustmoon Inactive Account Join Date: Mar 2008 Location: Toronto, San Diego, Seattle Posts: 455 Original Poster	Oh, yes, and it does seem strange that they would be spending so much energy on a new version (2.0) at the same time as an upgrade to the current version. I can't imagine how that team can go in two different directions at the same time, seems like it would make more sense, if they want to spend time to come up with a new version (2.0) is to offer a simple update to the current version that keeps everything relatively the same, but just fixes bugs and adds support for the newer cameras.

05-03-2008, 04:32 AM	#10
Eduardo Aigner Inactive Account Join Date: May 2008 Location: Brazil Posts: 3	Originally posted by a a i b ^I work on a mac, where I saw the timeshift problem with Adobe DNG Converter 4.4. Same here. Mac Leopard, DNG Converter 4.4.1. The image time goes wrong for 6 hours....

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