User Tag List

Thanks useful information Thanks useful information:  1
Results 1 to 6 of 6

Thread: Raw, PEF, DNG & Lightroom

  1. #1
    Member
    Join Date
    02 Dec 2009
    Location
    Swansea
    Posts
    14
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Raw, PEF, DNG & Lightroom

    Ok, so I thought it was time I made the switch to raw so I was fiddling the settings on my camera (Pentax K-m) and I found out it lets me choose 2 types (formats?) of raw: PEF and DNG. Now which one does Lightroom like (I suppose only DNG?)? I tried to look this up through Google but can't figure it out. Help!

    Also, I can choose from 3 different formats on my camera, JPEG, raw and raw+. I checked my manual but there's nothing about raw+, does anybody have any information about that?

  2. #2
    Ausphotography Regular
    Join Date
    28 Dec 2008
    Location
    Penrith
    Posts
    1,335
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi Martine, DNG is Photoshops conversion to RAW files. What it does is changes the cameras RAW file to Photoshops RAW file so it can process it.
    Which version of Lightroom do you have?
    What is the full model no. of your Camera?
    If you let me know these I will look it up and let you know if your Lightroom supports your camera.
    I Googled "Pentax K-m raw files" and it came up with the following in the specs on one site.
    Image formats: JPEG (8-bit, Exif 2.21), PEF/DNG Raw (12-bit); RAW+JPEG available
    What that means is: JPEG - the correct bit size for uploading to web sites and printing
    PEF/DNG: PEF is Pentax letters for its RAW file. DNG: is photoshops letters for its raw file
    RAW+JPEG: Camera takes both RAW and JPEG photo at the same time. So if you want to process the RAW file yourself in Lightroom you can and if you just want to print or upload to web you can use the JPEG without doing anything to it as the camera has done all the processing for you, although, you really still need to do some sharpening on the JPEG photo.
    Hope this helps and is not too confusing for you.
    Carmen

    My Stuff:- Canon 50D l EF 28-80 f2.8-4L
    l EF 100-300 f4-5.6 l Canon 100mm f2.8 macro l Tokina 11-16 f2.8 l Pol. Filter l Flash l Grip l Remote l Tripod l Lightroom 2 l CS3

    Constructive Critique of my photos always appreciated

  3. #3
    It's all about the Light!
    Tech Admin
    Kym's Avatar
    Join Date
    15 Jun 2008
    Location
    Modbury, Adelaide
    Posts
    9,640
    Mentioned
    16 Post(s)
    Tagged
    0 Thread(s)
    I use PEF and LR 2.6; K-x is supported in LR 2.6. PEF are slightly smaller than DNG
    regards, Kym Gallery Honest & Direct Constructive Critique Appreciated! ©
    Digital & film, Bits of glass covering 10mm to 500mm, and other stuff



  4. #4
    Member
    Threadstarter

    Join Date
    02 Dec 2009
    Location
    Swansea
    Posts
    14
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Smaller is good! I use Lightroom 2.4, I might try PEF next time - thanks Kym.

    I didn't know there were different models for the Pentax K-m, Carmen, my manual only says K-m...I know in some parts of the world it's sold as the K2000 - don't know if that helps. Thanks for the explanation though, I don't think I'll ever use raw and JPEG together, it seems like it would take up a lot of space and I never print without having fiddled with a photo in Lightroom anyway.

  5. #5
    Member
    Join Date
    30 May 2009
    Location
    Sydney
    Posts
    2,599
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Smaller is not always better.

    eg the colourspace options

    sRGB is smaller but Adobe RGB gives a wider depth.

    When shrinking... you will lose detail.

    And, from what I understand, the next generation of cameras are going to change it all (and up the file sizes) again.

    Scotty
    Canon 7D : Canon EF 70-200mm f:2.8 L IS II USM - Canon EF 24-105 f:4 L IS USM - Canon EF 50mm f:1.8 - Canon EF-s 18-55mm f:3.5-5.6
    Sigma APO 150-500mm f:5-6.3 DG OS HSM
    - Sigma 10-20mm f:3.5 EX DC HSM
    Speedlite 580 EX II - Nissin Di866 II - Yongnuo 460-II x2 - Kenko extension tube set - Canon Extender EF 1.4x II
    Manfroto monopod - SILK 700DX Pro tripod - Remote release - Cokin Z-Pro filter box + Various filters

    Current Social Experiment: CAPRIL - Wearing a cape for the month of April to support Beyond Blue
    Visit me on Flickr

  6. #6
    A royal pain in the bum! arthurking83's Avatar
    Join Date
    04 Jun 2006
    Location
    the worst house, in the best street
    Posts
    7,851
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Scotty72 View Post
    ...

    sRGB is smaller but Adobe RGB gives a wider depth.

    When shrinking... you will lose detail.

    ....

    Scotty

    That's only true of raster images(in camera that means JPG and TIFF made in camera).

    The raw data captured by the camera is not colourspace aware. It's just a bunch of binary bits(and pieces?) that have to be interpreted by the camera and the software on the PC.
    You can reset/change the colourspace on the PC via your editor to whatever you like with no affect on the quality of the colour within the raw file.
    Nikon D800E, D300, D70s
    {Nikon} -> 50/1.2 : 500/8(CPU'd) : 105/2.8VR Micro : 180/2.8ais : 105mm f/1.8ais : 24mm/2ais
    {Sigma}; ->10-20/4-5.6 : 50/1.4 : 12-24/4.5-5.6II : 150-600mm|S
    {Tamron}; -> 17-50/2.8 : 28-75/2.8 : 70-200/2.8 : 300/2.8 SP MF : 24-70/2.8VC


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •