Question about Panasonic Lumix DMC-FZ20 Digital Camera

4 Answers

Lumix FZ20 - Splits and discolors tiff/high-res images - jpgs are ok

I love this camera to bits, and would like to know why, when I take a high-res pic (tiff format), there is a thin strip of the image on the left edge that is moved to the right edge, and the whole color balance shifts to the red/green. The thumbnail jpgs that the camera collects along with the tiffs are not affected.

The problem doesn't show up when viewing on the camera itself; only when viewing the pic on a computer, so it seems to be a problem in encoding the data, but why would it be alright on the camera's LCD? It's surely got me scratching my head, and Panasonic hasn't responded to tech requests.

I have tried reformatting SD cards, and tried different sized SD cards.

Any thoughts would be appreciated.

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  • pquart Dec 11, 2008

    I have the same problem. part of the right of the image is shifted to the left and colors shifted almost like a negative. Google search finds reference to this being a problem with tiff on this camera and 2G cards. I can't find a reference for a way to fix the damaged images.

  • Grazhoppa Dec 20, 2008

    I found this cumbersome solution, but at least I have my pictures:
    http://www.flickr.com/groups/fz20/discus...

    or,http://tinyurl.com/3s79np

    "matt.lonewolf says:


    For all you out there that really want TIFFs, but don't have a UNIX
    box, I've come up with a solution that's free to do and not too
    difficult, using XVI32, a free Hex Editor for Windows.



    1. Open XVI32

    2. Click File->Open

    Navigate to your file and click open.

    3. Click Address->Goto

    Choose Hexidecimal: $4000

    4. Click Edit-> Block mark

    5. Click Address->Jump width

    Choose Decimal: 16383

    6. Click Address->Jump down

    7. Click Edit->Block mark

    8. Click Edit->Block delete

    9. Click File->Save as...

    Choose a file name, don't forget to add .tif



    Done! Check your photo to make sure it all worked.




    Posted 18 months ago.
    (
    permalink
    )"

    It's cumbersome, but at least I have my pictures.


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My TIFs were fine and loaded onto computer OK with original 256 MB SD card.
Changed to a 2GB SD, and oops! picture shifted and miscoloured.
It seems my camera can only recognise up to 1GB SD card, and although I was still well inside the 1GB, it caused these probs.
changed back to the 256MB card and it worked fine again.
So, my solution is to check on the maximum card size your computer can use correctly.
Newbee

Posted on Jul 28, 2009

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I just encountered the same problem with tiffs and a kind friend wrote me a Mac terminal script to fix it since I couldn't run Windows' Irfanview and do 'swap colors rgb to brg.' That still left the slices to move anyway.

I also emailed Lemke Graphic Converter and he put the fix in version 6.4.2. Open the program, go to file/convert and modify, navigate to the image in the left window, choose function/fix Lumix FZ20 2 gigabyte tifs in the dropdown and click go. I imagine if you select all the images and click go it will batch them.

Here's the terminal script. It needs to be put in a plain text document named  'fixtiff.sh'. 

for FILE in "$@"
do
echo "Fixing file $FILE"
dd if=$FILE of=1 bs=16384 count=1
dd if=$FILE of=2 bs=16384 skip=2
cat 1 2 > temp/$FILE
rm 1 2
done


Then follow these instructions:

1.  Make a NEW folder called "PhotosFix" or something friendly on your Desktop. If you name it something different, be sure and use the new name in each step below.

2.  Put the "fixtiff.sh" file into the "PhotosFix" folder above.

3.  COPY (copy, not move!) all your photos into the "PhotosFix" folder as well

4.  Open Terminal.  After each command below, hit enter. I've added space to make it clear which part is the UNIX command.

5.  Type    cd ~/Desktop/PhotosFix              (changes to your home folder)

6.  Type    mkdir ~/Desktop/PhotosFix/temp      (makes a TEMP folder - where the fixed files will be)

7.  Type    chmod +x fixtiff.sh                 (makes the script "run-able")

8.  Type    ls *.TIF > list.txt                 (makes a list of all your TIF files in list.txt)

On my computer I needed to do an 8b. Type     bash     (had a different shell than the creator)

9.  Type    for tiffimage in $(<./list.txt); do ./fixtiff.sh $tiffimage; done     (does the conversion!)

Step #9 is where the work begins.  What it does is run the fixtiff.sh script on every file in the list.txt list that is made in Step 8. The script itself takes the first part of the file, skips the 16k of garbage, and then adds the rest of the file.

Some important notes:

1.  There cannot be ANY spaces in the file names.  None at all!

2.  Files MUST have a .TIF extension on them. (the ones you sent both did)

3.  All the "fixed" images will be in your /Desktop/PhotosFix/temp folder

Terrie






Posted on Jun 09, 2009

  • RobertBell Feb 15, 2011

    I have a one click fix utility that packages the excellent xvi32 hex editor with all scripts and checks for FZ20 origin and correct file size for broken tiffs before making changes.

    Just drop the exe into the folder with the broken (and any other) TIFF images and let it run.

    Drop me an email at robert.bell@live.com and i'll send it on.

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Re your question about my problem, 1) I'm afraid I've never used such a program! Always download direct to computer's hard drive (using digital cameras over 10yrs) 2) Re' the maximum card size your computer can use correctly', this particular card is the only one that's ever been in this camera (both bought together a few months ago) and has been no problem. Also, has already downloaded 2 of the pics currently on it, which I just never got round to deleting from the camera! Thanks for trying to help!

Posted on Jan 30, 2013

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I have the same problem but can offer some insight. The jpg and the tif both have the same photo number but with different .ext.

Somehow they are the same image and in the right software environment they seem to collect the info into one picture.

The jpegs are quite disconcertingly small at 500k. Not encouraging when you're trying to take hi rez images for a client and you whack the camera onto tif expecting that is the solution. But when you open the jpg in say photoshop, the image is 9MB (the same size as the tif if you do a file information check on the whacky looking blue tif).

You can then save as a tif or raw or psd file and the image seems to be a single high rez still image. Curiously when I try to automate a file save action in photoshop I end up with problem stills. However if I do a one off it's fine. I'm not that handy with automation though.

It's far from ideal and in the future I think i'll stick to the highest resolution jpg and leave tif alone until I can find out what the hell is going on and why.

bergen.

Posted on Dec 20, 2008

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