Night shots, failure, please advise

[Marco van Eck]

Flickr strips it out. DPP won't show it. Different cameras do display different data in a full EXIF dump from the .CR2 file, such as you get with Exiftool. For example, 7D and 5DII images have Focus Distance Upper and Lower, whereas a 1D X image has a Subject Distance field instead.

Thanks Neuroanatomist.

Like you said, no info from DPP. With ExifTool I found a wealth of information under section MakerNotes from the RAWs, amongst others :

First shot
FocalLength : 37120 mm
FocusDistanceUpper : inf
FocusDistanceLower : 81.91 m

Second shot
FocalLength : 35072 mm
FocusDistanceUpper : inf
FocusDistanceLower : 81.91 m

No idea why the Focus Distance values are exactly the same... There is a time difference of about 30 minutes between taking the two images.

I'm sorry to say that I don't have a real idea yet if these figures are good or bad.


Hope to be able to share some better night pictures with you all soon

Cheers,
Marco

[Sheiky]

Flickr strips it out.

I'm not sure if I understand you correctly, but in my case Flickr shows all the info off my photos including focus distance.

First shot
FocalLength : 37120 mm
FocusDistanceUpper : inf
FocusDistanceLower : 81.91 m

Second shot
FocalLength : 35072 mm
FocusDistanceUpper : inf
FocusDistanceLower : 81.91 m

No idea why the Focus Distance values are exactly the same... There is a time difference of about 30 minutes between taking the two images.

I'm sorry to say that I don't have a real idea yet if these figures are good or bad.

Marco, I'm not sure if this counts for everyone, but I noticed that the number shown in the Focus Distance in EXIF is actually "quite" accurate on some points. On my lenses the distance number shown in the small dial on your lens often mirrors what you will be seeing in EXIF. However: once you get beyond the largers number on your lens(to the point where the lens goes to infitnity) the focus distance number in your EXIF cannot be trusted anymore. In your case this might explain the weird, but constand FocusDistance value.
At least that's what I noticed in my case.