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Aspect ratios and file saving

Discussion in 'Panasonic Chat' started by El_Sid, Apr 30, 2018.

  1. El_Sid

    El_Sid Well-Known Member

    Recently I have been taking pictures on my G3 in square format. Yesterday I finally got round to downloading then to my PC for sorting.

    Now while I expected the JPEG files to be square I was somewhat surprised to discover that the RAW (.rw2) were also square format. I had, apparently mistakenly, assumed that while the JPEGS would be square the camera would still record the full frame for the raw file which it does not appear to have done.

    Has anyone else encountered this? Is this actually the case or have I missed something? Is it possible to access the full frame for the raw file or is it really only square?
  2. PeteRob

    PeteRob Well-Known Member

    I think you'd need to read the manual. My understanding is indeed that it is usual to have the full frame Raw files - the masking to other aspect ratios being done by the in-camera conversion. Possibly the raw-file header contains a flag that says the file should appear cropped in whatever software you are using. As a thought, if the raw file size is 3/4 of the usual then you know the data is gone.
  3. peterba

    peterba Well-Known Member

    Yes - the Panasonic LX100 does the same - and it caught me out, too! Likewise, I expected the JPGs to be cropped to 1:1, and the Raw files to be 3:2, but it wasn't the case.

    Panasonic seems to be alone in cropping the Raw files in this way - unless anyone knows otherwise. :confused:
  4. Snorri

    Snorri Well-Known Member

    Olympus claim to always have the raw file full size regardless of aspect ratio. That said I have never tried so this is just “I think it is the case”
  5. Chester AP

    Chester AP Well-Known Member

    Why crop images at the time you take them, since you obviously have access to the RAW files for processing later?
    You might reconsider and want a different crop to the one you selected when taking the picture.
  6. El_Sid

    El_Sid Well-Known Member

    The point is I wasn't expecting the raw files to be cropped. I fancied composing in square format with the option of reverting to the full frame raw file if required. The assumption I made was that the G3 records the whole frame with raw files and only applies the crop to JPGs - experience has proven this assumption to be false. Hey-ho we live & learn...:confused:

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