Exif

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Ceejay

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Not sure if this is in the right area but anyway, when I check the Exif on some pics the focussed distance is shown on some but not on others.
Is there a reason or is it some cameras don't record it .Dosn't seem to matter if Canon or Nikon is used.
C
 
Ceejay said:
Not sure if this is in the right area but anyway, when I check the Exif on some pics the focussed distance is shown on some but not on others.
Is there a reason or is it some cameras don't record it .Dosn't seem to matter if Canon or Nikon is used.
C
Click to expand...
I'm not 100%, but I think not all lenses report this information to the body. So when it isn't reported it can't be added to the EXIF.
 
SixToes said:
I'm not 100%, but I think not all lenses report this information to the body. So when it isn't reported it can't be added to the EXIF.
Click to expand...

following on...why is there a function in photoshop to save for web...which then erases the exif
 
Save for web optimises images for inclusion in websites, and part of that is making the file size as small as possible for an acceptable level of image quality. I think Exif data adds to the file size, so as the vast majority of people who view the image won't care about Exif it gets thrown away.
 
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