Pentax RAW plugin for Photoshop

Discussion in 'Pentax' started by Jeff R, Oct 30, 2005.

  1. Jeff R

    Jeff R Guest

    Apologies to the group if this has been done to death.

    I have tried to install the Pentax RAW (*.PEF) plugin for Photoshop with no
    success. I get an "unable to load preview" (or something like that) error,
    then no image at all loads.

    I have downloaded at least two different versions from three different
    sites - none with success.

    I am using Win2000 SP4 (no flames, please) and have tried the plugins with
    both Photoshop 7.0 and CS (though not CS2).
    The .PEFs are produced with my *1stDS with updated firmware.

    I am installing it correctly (dumping the decompressed plugin in the
    Import/Export folder.)

    Googling this problem yields many, many pages of identical and similar
    experiences, but no solutions, AFAICS.

    Anybody here had a similar experience (or, better..) got any ideas to solve

    Jeff R, Oct 30, 2005
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  2. Jeff R

    John Francis Guest

    The plugin for Photoshop, which only works with Photoshop 7, doesn't
    support the .PEF format used in the DS, only the slightly older format
    that was used in the D.

    Fortunately with CS (and with CS2) you don't need (or want) the plugin.
    Just make sure you've updated to at least V2.3 of ACR, and you'll be OK.
    (With CS2, you should update to V3.x of ACR. You can't use this with
    CS, though, - just with CS2).

    Just to complicate things even further - if you have Photoshop Elements
    (either V3 or V4) you can use ACR 3.x; Elements doesn't use the part of
    the interface that changed between V2.x and 3.x
    John Francis, Oct 30, 2005
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  3. Jeff R

    Jeff R Guest

    Sadly - been there, done that.
    Loaded ACR 2.4 into CS - no dice. Same symptoms.
    Starting to get annoying.

    Thanks anyway, John.
    Jeff R, Oct 30, 2005
  4. Jeff R

    Paul Mitchum Guest

    ACR 2.4 with CS works fine for *ist DS files.
    Paul Mitchum, Oct 30, 2005
  5. Jeff R

    Pete D Guest

    Thats what I use with CS, works fine.

    You could use RSE in the mean time or the Pentax RAW software works pretty
    well as well. Did you also know that you can use the camera control software
    from the D to control the Ds, works very nicely.
    Pete D, Oct 30, 2005
  6. Jeff R

    John Francis Guest

    Are you sure you're really using ACR, and not trying to use the plugin?
    ACR (either 2.4 with CS, or 3.x with CS2) work just fine with DS images.
    John Francis, Oct 30, 2005
  7. Jeff R

    Jeff R Guest

    Thanks for the help, guys, but I'm stymied.
    Yes, I'm using Adobe Camera Raw 2.4 straight from the Adobe site.
    Followed their instructions to the letter.

    Same problem.
    Using File--Open--All formats it will recognise the PEF file, show a
    thumbnail for it, then fail the open.
    Using Import--Pentax RAW it displays a dialog box with the
    previously-mentioned error msg, then fails.

    I did install ACR 3.1 and 3.2, then uniunstalled them when I realised they
    were for CS2. I'm using CS (v8.0, that is).

    ....and yes, I *can* use the Pentax software standalone, but that really

    Thanks again.
    Jeff R, Oct 30, 2005
  8. Jeff R

    nv Guest

    Just a thought, but does the Pentax produce /reduced-size/ RAW files, as
    well as full-sized one's? If so, then some RAW converters may not get on
    with them, (as I discovered with my Kodak DSLR).


    nv, Oct 30, 2005
  9. Jeff R

    Jeff R Guest

    Not AFAIK.
    Mine average out at a bit over 10M per image. I can't see any option in the
    menus to produce any other than a fullsize RAW.
    Jeff R, Oct 30, 2005
  10. Jeff R

    Glenn Guest

    Probably a silly question, but what is RSE?

    Glenn, Oct 30, 2005
  11. Jeff R

    John Bean Guest

    I'm a bit unclear as to whether you installed the Pentax
    plugin (for the D) at some time. If you did and haven't
    deleted it then it will probably be taking precedence over
    the ACR plugin you downloaded.
    Well something is producing the thumbnail, and if it isn't
    ACR then...

    Have a look under Help->About plugins... where you should
    have *only one* "Camera Raw" - click on it to discover its
    version - and scan the list for signs of any other non-Adobe
    raw plugins. I can assure you that CS/ACR2.4 (or 2.3) works
    perfectly will *istDS files. The symptoms you see indicate
    that either a pre-2.3 version of ACR is installed, or a
    non-Adobe plugin (probably Pentax) ius taking precedence.
    John Bean, Oct 30, 2005
  12. Jeff R

    John Francis Guest

    Those are the symptoms you will see if you still have the Pentax plugin
    (written for Photoshop 7.0) installed in your plugin directory - it will
    be found first, preventing ACR from being used. The old plugin doesn't
    recognise the PEF format used on the DS, so it fails to load the image.
    John Francis, Oct 30, 2005
  13. Jeff R

    Paul Mitchum Guest

    Not over USB 1. :) (Which is to say: It works, but it's slow as
    molasses on January 1. A RAW file takes ten subjective years to get to
    the computer.)
    Paul Mitchum, Oct 30, 2005
  14. Jeff R

    Paul Mitchum Guest

    Just an aside: Most RAW file formats have a thumbnail and preview JPEG
    embedded in their EXIF data. Any media browser that can do EXIF can see
    these JPEGS, even if it can't decode the RAW file.

    In fact, many more open-standard files (JPEG, TIFF) also have thumbnails
    and previews embedded within them in just this way.
    Paul Mitchum, Oct 30, 2005
  15. Jeff R

    Tony Polson Guest

    Tony Polson, Oct 30, 2005
  16. Jeff R

    Pete D Guest

    Well if you still have a PC that only has USB 1. then you deserve everything
    you get, time to get that machine into the museum.
    Pete D, Oct 30, 2005
  17. Jeff R

    John Bean Guest

    Not inside a Photoshop File->Open... dialog they can't. The
    thumbnail seen in that dialog is generated by Photoshop
    itself or a file format plugin like ACR.
    John Bean, Oct 30, 2005
  18. Jeff R

    Paul Mitchum Guest

    I don't doubt what you're saying, but I'm curious how you came to this
    Paul Mitchum, Oct 30, 2005
  19. Jeff R

    John Bean Guest

    Because they're not running, PS is. PS will show thumbnails
    for files it supports no matter what other software might do
    (or not do) with them outside of PS.
    John Bean, Oct 30, 2005
  20. Jeff R

    Paul Mitchum Guest

    You missed my point.

    Any application can get the thumbnail JPEG from the EXIF data of any
    file, even if it can't read the contents of that file. That's why the
    thumbnail is there.

    Photoshop *could* be showing you this EXIF thumbnail in the open file
    dialog. That wouldn't mean Photoshop can actually open the file, or that
    it's using a plugin to show you the thumbnail.
    Paul Mitchum, Oct 30, 2005
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