K10D DNG format. Useless?

Edvinas · 09-18-2006, 05:19 PM

Hi,

So, after all it seems that DNG format implementation in K10D isn't good at all.

Size of K10D made DNG is 16,5MB while size of PEF is 13,3MB.

Why did they bother implementing DNG at all? The main advantage of DNG for me (and probably for most other) was smaller file size.

To tell whole truth, firmware used to test file sizes was v0.2, let's hope v1.0 will be different in this area.

Link to my info source (it's in Russian):
http://www.penta-club.ru/forum/index.php?showtopic=17231

Ole · 09-18-2006, 06:15 PM

That's strange. I always convert my PEF files from my *istD to DNG shaving some 60+% off the file size.

Edvinas · 09-18-2006, 07:13 PM

It seems that they are making some kind of compression for PEF files therefore their size increased just ~30% compared to 6Mpix Pentax DSLRs while megapixel count increased ~67%.

It seems that Pentax are not using losseless compression for DNG, so size from 10MB (of 6MPix DSLR PEF) jumped to 16,5MB.

I expect that K10D PEF file converted into DNG by Adobe DNG converter will be 8-8,5MB... (5MB + 67%).

joele · 09-18-2006, 07:18 PM

I still can't use either Bibble or Photoshop to convert my RAW files from my K100d.. Just that crappy Pentax lab software (or Silkypix which I don't want to buy at this point)..

So I have no doubt for the first few months I will be using DNG just so I can use a half decent RAW conversion program ;-)

MPrince · 09-19-2006, 03:47 AM

joele, what makes the Pentax lab software crappy? I won't be getting my k100d until tomorrow, so I'm not familiar with the software. Just curious as to what I can expect. Thanks.

roscot · 09-19-2006, 04:17 AM

Don't forget, the firmware is still in Beta. We really don't know what we will get until the final version.

joele · 09-19-2006, 06:52 AM

MPrince it is just no where near as good a workflow than Bibble, you have to open edit (with floating edit windows) and save each file seperately...

Bibble is much easier and faster to batch process all your images..

davek · 09-19-2006, 02:28 PM

Originally posted by joele

MPrince it is just no where near as good a workflow than Bibble, you have to open edit (with floating edit windows) and save each file seperately...

Bibble is much easier and faster to batch process all your images..

Thanks. I've been trying out Silkypix (free mode) & Pentax Lab to potenially replace RSE.

I couldn't figure out a clean workflow in Pentax Lab for the life of me. Silkypix is better, but I still prefer the workflow of RSE. I like the default outputs of Silkypix better than RSE though.

Edvinas · 09-19-2006, 03:03 PM

Originally posted by davek

I couldn't figure out a clean workflow in Pentax Lab for the life of me. Silkypix is better, but I still prefer the workflow of RSE. I like the default outputs of Silkypix better than RSE though.

True. RawShooter's workflow is clearly the bes, however conversion quality, especially colour accuracy isn't as good as competition. Red especially bad, it becomes kind of orange instead of red. Colour Engine helps a bit, but still not 100% satisfactory.

stevebarnes · 07-12-2021, 04:12 AM

Originally posted by Edvinas

True. RawShooter's workflow is clearly the bes, however conversion quality, especially colour accuracy isn't as good as competition. Red especially bad, it becomes kind of orange instead of red. Colour Engine helps a bit, but still not 100% satisfactory.

have you tried DarkTable?

35mmfilmfan · 07-12-2021, 04:19 AM - **1 Like**

Originally posted by stevebarnes

have you tried DarkTable?

Since this thread is almost 15 years old, I would imagine it likely that the OP has found software that meets his / her requirements.

ChristianRock · 07-14-2021, 10:12 AM

Originally posted by stevebarnes

have you tried DarkTable?

Not sure you are aware but.... You just aswered a 15-year old thread... DarkTable probably didn't even exist.

Not a Number · 07-14-2021, 10:47 AM

Let sleeping dogs lie.

09-18-2006, 05:19 PM	#1
Edvinas Veteran Member Join Date: Sep 2006 Location: Kaunas Posts: 1,458	K10D DNG format. Useless? Hi, So, after all it seems that DNG format implementation in K10D isn't good at all. Size of K10D made DNG is 16,5MB while size of PEF is 13,3MB. Why did they bother implementing DNG at all? The main advantage of DNG for me (and probably for most other) was smaller file size. To tell whole truth, firmware used to test file sizes was v0.2, let's hope v1.0 will be different in this area. Link to my info source (it's in Russian): http://www.penta-club.ru/forum/index.php?showtopic=17231

09-19-2006, 04:17 AM	#6
roscot Veteran Member Join Date: Sep 2006 Location: Virginia Beach VA USA Photos: Gallery Posts: 1,363	Beta firmware. Don't forget, the firmware is still in Beta. We really don't know what we will get until the final version.

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09-18-2006, 06:15 PM	#2
Ole Administrator Join Date: Sep 2006 Location: Copenhagen, Denmark Photos: Gallery \| Albums Posts: 4,408	That's strange. I always convert my PEF files from my *istD to DNG shaving some 60+% off the file size.

09-18-2006, 07:13 PM	#3
Edvinas Veteran Member Join Date: Sep 2006 Location: Kaunas Posts: 1,458 Original Poster	It seems that they are making some kind of compression for PEF files therefore their size increased just ~30% compared to 6Mpix Pentax DSLRs while megapixel count increased ~67%. It seems that Pentax are not using losseless compression for DNG, so size from 10MB (of 6MPix DSLR PEF) jumped to 16,5MB. I expect that K10D PEF file converted into DNG by Adobe DNG converter will be 8-8,5MB... (5MB + 67%).

09-18-2006, 07:18 PM	#4
joele Veteran Member Join Date: Sep 2006 Location: Melbourne, Australia Photos: Gallery Posts: 1,308	I still can't use either Bibble or Photoshop to convert my RAW files from my K100d.. Just that crappy Pentax lab software (or Silkypix which I don't want to buy at this point).. So I have no doubt for the first few months I will be using DNG just so I can use a half decent RAW conversion program ;-)

09-19-2006, 03:47 AM	#5
MPrince Veteran Member Join Date: Sep 2006 Location: WV Posts: 1,495	joele, what makes the Pentax lab software crappy? I won't be getting my k100d until tomorrow, so I'm not familiar with the software. Just curious as to what I can expect. Thanks.

09-19-2006, 06:52 AM	#7
joele Veteran Member Join Date: Sep 2006 Location: Melbourne, Australia Photos: Gallery Posts: 1,308	MPrince it is just no where near as good a workflow than Bibble, you have to open edit (with floating edit windows) and save each file seperately... Bibble is much easier and faster to batch process all your images..

09-19-2006, 02:28 PM	#8
davek Veteran Member Join Date: Sep 2006 Location: Elmira, On, Canada Posts: 461	Originally posted by joele MPrince it is just no where near as good a workflow than Bibble, you have to open edit (with floating edit windows) and save each file seperately... Bibble is much easier and faster to batch process all your images.. Thanks. I've been trying out Silkypix (free mode) & Pentax Lab to potenially replace RSE. I couldn't figure out a clean workflow in Pentax Lab for the life of me. Silkypix is better, but I still prefer the workflow of RSE. I like the default outputs of Silkypix better than RSE though.

09-19-2006, 03:03 PM	#9
Edvinas Veteran Member Join Date: Sep 2006 Location: Kaunas Posts: 1,458 Original Poster	Originally posted by davek I couldn't figure out a clean workflow in Pentax Lab for the life of me. Silkypix is better, but I still prefer the workflow of RSE. I like the default outputs of Silkypix better than RSE though. True. RawShooter's workflow is clearly the bes, however conversion quality, especially colour accuracy isn't as good as competition. Red especially bad, it becomes kind of orange instead of red. Colour Engine helps a bit, but still not 100% satisfactory.

07-12-2021, 04:12 AM	#10
stevebarnes Junior Member Join Date: Mar 2017 Location: Australia Posts: 31	Originally posted by Edvinas True. RawShooter's workflow is clearly the bes, however conversion quality, especially colour accuracy isn't as good as competition. Red especially bad, it becomes kind of orange instead of red. Colour Engine helps a bit, but still not 100% satisfactory. have you tried DarkTable?

07-12-2021, 04:19 AM - 1 Like	#11
35mmfilmfan Pentaxian Join Date: Oct 2016 Location: Norfolk, UK Posts: 4,329	Originally posted by stevebarnes have you tried DarkTable? Since this thread is almost 15 years old, I would imagine it likely that the OP has found software that meets his / her requirements.

07-14-2021, 10:12 AM	#12
ChristianRock Pentaxian Join Date: Jul 2013 Location: People's Republic of America Photos: Gallery \| Albums Posts: 9,910	Originally posted by stevebarnes have you tried DarkTable? Not sure you are aware but.... You just aswered a 15-year old thread... DarkTable probably didn't even exist.

07-14-2021, 10:47 AM	#13
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	Let sleeping dogs lie.