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Has Pentax dropped PEF support in DCU 5.6.1?

Started Aug 14, 2016 | Questions
CarlosRG Regular Member • Posts: 349
Has Pentax dropped PEF support in DCU 5.6.1?
1

I have just downloaded and installed DCU 5.6.1. I usually develop my RAW photos with Lightroom, but from time to time I also use DCU. To my surprise, it seems that Ricoh-Pentax has apparently dropped PEF support, as I cannot open PEF files from my former *ist DS or K10D with this updated version of their software. Now I use DNG on my K-7 and K-S2 bodies, but even some PEF shots taken with the K-7 cannot be open with DCU 5.6.1

Has Ricoh dropped PEF support intentionally or is it a bug? Or perhaps a problem with my PC running Windows 10? I would like to know if someone else has also found this problem.

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Pentax *ist DS Pentax K10D Pentax K-7
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Lars Holte
Lars Holte Senior Member • Posts: 1,216
Re: Has Pentax dropped PEF support in DCU 5.6.1?

Spooky! You're right. DCU 5.6.1 will not open PEF files from my ist*DS, K10D or K20D in Laboratory mode, but it will open PEF files from my K-5.

DCU will show PEF-files from all cameras in Browser mode, but only shows a blank screen when I switch to Laboratory mode.

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Lars Holte
holtelars on Flickr

 Lars Holte's gear list:Lars Holte's gear list
Pentax K-3 Pentax K-1 Pentax smc FA 50mm F1.4 Sigma 10-20mm F4-5.6 EX DC HSM Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM +11 more
miles green
miles green Veteran Member • Posts: 7,827
Re: Has Pentax dropped PEF support in DCU 5.6.1?

Lars Holte wrote:

Spooky! You're right. DCU 5.6.1 will not open PEF files from my ist*DS, K10D or K20D in Laboratory mode, but it will open PEF files from my K-5.

DCU will show PEF-files from all cameras in Browser mode, but only shows a blank screen when I switch to Laboratory mode.

I guess DCU 5.6.2 is just around the corner with some "reliability optimizations"!

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Miles Green
Pentaxian with chronic LBA
Corfu, Greece
N.B. All my images are protected by Copyright

 miles green's gear list:miles green's gear list
Pentax K-1 Pentax K-1 II Pentax smc FA 31mm F1.8 AL Limited Pentax smc FA 43mm F1.9 Limited Pentax smc FA 77mm 1.8 Limited +7 more
Lars Holte
Lars Holte Senior Member • Posts: 1,216
Re: Has Pentax dropped PEF support in DCU 5.6.1?

miles green wrote:

I guess DCU 5.6.2 is just around the corner with some "reliability optimizations"!

Well, if one considers a PEF file to be something akin to a "digital negative", one needs a way to process the (older) files. I have saved a copy of the DCU 5.5.1 installation file on my PC just to be sure.

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Lars Holte
holtelars on Flickr

 Lars Holte's gear list:Lars Holte's gear list
Pentax K-3 Pentax K-1 Pentax smc FA 50mm F1.4 Sigma 10-20mm F4-5.6 EX DC HSM Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM +11 more
Leandros S Senior Member • Posts: 2,165
Re: Has Pentax dropped PEF support in DCU 5.6.1?

Lars Holte wrote:

miles green wrote:

I guess DCU 5.6.2 is just around the corner with some "reliability optimizations"!

Well, if one considers a PEF file to be something akin to a "digital negative", one needs a way to process the (older) files. I have saved a copy of the DCU 5.5.1 installation file on my PC just to be sure.

If PEF processing doesn't make a re-appearance, it would be great if such installation files could be made available somewhere. Cheers.

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Love the lens you're with.

Joseph Tainter Forum Pro • Posts: 11,494
Re: Has Pentax dropped PEF support in DCU 5.6.1?

Lars Holte wrote:

miles green wrote:

I guess DCU 5.6.2 is just around the corner with some "reliability optimizations"!

Well, if one considers a PEF file to be something akin to a "digital negative", one needs a way to process the (older) files. I have saved a copy of the DCU 5.5.1 installation file on my PC just to be sure.

Heck, I'm still using DCU 4 (mainly just as a file viewer). I found subsequent versions to be useless for this.

Joe

Lars Holte
Lars Holte Senior Member • Posts: 1,216
Re: Has Pentax dropped PEF support in DCU 5.6.1?
1

Joseph Tainter wrote:

Heck, I'm still using DCU 4 (mainly just as a file viewer). I found subsequent versions to be useless for this.

Joe

OK, so you don't use any of the later versions of DCU and you obviously don't think much of the software. Fine with me.

But that does not alter the fact that Pentax ought to support their own file format also in the later versions of their own software.

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Lars Holte
holtelars on Flickr

 Lars Holte's gear list:Lars Holte's gear list
Pentax K-3 Pentax K-1 Pentax smc FA 50mm F1.4 Sigma 10-20mm F4-5.6 EX DC HSM Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM +11 more
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