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View Full Version : PS7 and EXIF data MESS!


TD27
18th of February 2003 (Tue), 09:44
I asked about this on the Fred Miranda web site, but no one was able to figure it out, so I’m trying here…

Folks were telling me that with the browser in PS7 I should be able to see full EXIF data, and in particular the ISO data for my images.

But, using PhotoShop, I cannot see the ISO setting used for ANY of my images. In all the EXIF data shown by the browser in PhotoShop, the term ISO does not even appear! Not that it doesn't show the data for ISO... NOTHING about ISO appears.

Ok, using BreezeBrowser, I can see the full EXIF data for images which have NOT been edited and saved by PhotoShop. In the status bar, I see this:

2003/02/14 13:40:56, 7.0 to 28.0mm @ 7mm, 1/50sec f/2.5, Exp:Program, ISO 200, AF:Single AF, WB:Auto, Flash:Off

After editing and saving THAT image in PS, and again looking at it with BreezeBrowser, I get:

2003/02/14 13:40:56, 0.0mm @ 7mm, 1/50sec f/2.5, Exp:, ISO , AF:, WB:, Flash:On

So not only is some EXIF data lost by editing/saving the image in PhotoShop, but the Flash setting changed from Off to On!!!

My tests made me suspect that NO ONE could see that information through PhotoShop! And then someone sent me an image to test, and with his image, I could see all the EXIF data, including ISO.

That image did show the ISO information (titled "ISO Speed Ratings" in the PS7 browser) and it continued to show that info even after editing and resaving it. I don't even have such an entry on any of my own images, even though BreezeBrowser does show the correct ISO information.

That image also had an "Author" entry in the EXIF data... I don't have that either.

Under "Exif version", that image showed "0". My images show "0220".

(I’m shooting with a Canon G3 and S230, but I’ve also checked older images taken with G2, G1, S20 and Coolpix 995 and 5000.)

Can anyone help me understand what's going on here?

Tim

TD27
19th of February 2003 (Wed), 12:59
Further (yet still more) testing added to the confusion. It LOOKS LIKE ALL images taken with any of my Canon cameras have a problem with the EXIF data. Images from my past Nikon cameras have no problem with EXIF data...

Here is how I tested. I first looked at the images in BreezeBrowser to see if any ISO data appeared. Always did with my Nikon images. Always did with my Canon images, even when ISO was set to Auto. (I also had various other ISO settings than Auto.)

I then looked at the images with PS 7.0.1 and then edited/saved the images and looked again. Nikon images always showed the ISO (and other) EXIF data. Canon images never did. Worse yet, when I edited and saved the Canon images through PS7, even BreezeBrowser no longer showed ISO information and other EXIF data was changed also.

What I don't understand (many things) is why Canon and Nikon cameras both running EXIF version 0210 behaved differently with the display of that data. And why even the latest model Canon cameras don't display that information correctly in PS. Is it a Canon problem or a PhotoShop problem? BreezeBrowser seems to have no problem in displaying the correct information (unless a Canon image is resaved through PS).

For the record, here are the camera images I tested, and the EXIF version being run on each of them:

Nikon CP950 0210
Nikon CP990 0210
Nikon CP995 0210
Nikon 5000 0210

Canon S20 0210
Canon G1 0210
Canon G2 0220
Canon G3 0220
Canon S230 0220

Whose problem is this? Canon's or Adobe's? I would think it's Canon's problem since even with older Canon cameras running EXIF version 0210 the problem exists and it does not exist with the Nikons running the same version.

Who do I talk to now? Does anyone besides me even care?

Tim

marcel wouters
28th of February 2003 (Fri), 03:17
I don't analyse deeply but observed the same problem! Once the image was edited in PS7 the camera attributes WB etc disapears.
From this point, fvu was unable to display the jpeg saved image.
Really don't know if this is normal or not, i agree that for an edited image the camera settings didn't not represent the reality and so should not be used anymore by a converter program.
???

Dave C
3rd of March 2003 (Mon), 02:47
I too note that the exif data is a mess in PS using ARC. It isn`t the end of the world because I save each shoot to my hard drive but I must admit it is annoying. I have got use to just looking at the exif and comparing details which did help me to get to grips with my 1Ds that I found hard to evaluate from the LCD. So now if I see a big difference in images shot at the same time I have to view them in Breeze to be able to understand why.
Hopefully it can be corrected with a fix in the future.