why does photoshop CS2 lose the EXIF ISO setting when you alter a picture?!

[tami]

why, oh why?

i look at the EXIF for an original photo, and it basically removes the vendor specific stuff. but that's where the ISO information is stored! why does photoshop CS2 do that?

 

[LiLithTecH]

Are you using 'SAVE AS' rather than 'SAVE'?

Also, its a good idea to edit COPIES of the Original.

 

[tami]

i actually found a suitable solution, but i wouldn't use it regularly since i have a script that can read the d70 ISO settings as they are (which is what i need) -- i just don't like how it removes it when editing in CS.

http://www.vandrasik.com/software/IsoFix12.zip
(requires .NET framework 1.1 to run)

quoted from the author (obtained from dpreview.com):

OK, Here is my fix for the EXIF ISO "bug". Nikon hides the ISO setting in the EXIF "MakerNotes" field. This program pulls it out of there and copies it to the standard EXIF ISO field. This makes the ISO setting viewable in PhotoShop and other programs that can't properly decode the Nikon MakerNote field. Works on images shot in JPG and images shot in NEF and converted with Nikon Capture or Nikon Browser / Nikon View.

To install, unzip all files to a temporary folder and run setup.exe. To use, right-click on a folder name and select "ISO Fix". The application will attempt to correct all JPGs in the folder.

it works good solution. i never delete originals, but i do want to keep ISO intact for photoblogging purposes.

 

[LiLithTecH]

Doing a 'SAVE AS' has the same effect without having to
install MS (get your Spyware\Trojan killers\Virus scanners up-to-date) .NET