Canon 40D and 400D: Meaning of FocalPlaneXSize and FocalPlaneYSize

[Archive]

[Originally posted by boels069 on 2008-02-22 14:41:25-08]

I am intrigued by the following values (Exiftoolversion 7.18):
FocalPlaneXSize: 1146.89 mm
FocalPlaneYSize: 182.47 mm

Is this related to the sensorsize (22.2 x 14.8 mm)?

[Archive]

[Originally posted by exiftool on 2008-02-22 15:17:45-08]

Normally the FocalPlaneX/YSize is the same as the sensor size,
but it appears that Canon has made a change in some of the
recent models that makes this information invalid.  I checked my samples,
and as you point out the FocalPlaneSize tags appear wrong for the 40D,
450D (Kiss X2) and 1DsMkIII (although they seem OK forthe 400D).  It looks like I
have to do some work in this area to see what Canon has changed.

Code:

29.39 mm        19.61 mm        Canon EOS-1D
36.63 mm        24.43 mm        Canon EOS-1DS
288.37 mm       1271.40 mm      Canon EOS-1Ds Mark III
23.22 mm        15.49 mm        Canon EOS 10D
23.04 mm        15.37 mm        Canon EOS 20D
23.22 mm        15.49 mm        Canon EOS 300D DIGITAL
23.04 mm        15.37 mm        Canon EOS 30D
23.04 mm        15.37 mm        Canon EOS 350D DIGITAL
23.04 mm        15.37 mm        Canon EOS 400D DIGITAL
1146.89 mm      182.47 mm       Canon EOS 40D
37.62 mm        24.84 mm        Canon EOS 5D
23.22 mm        15.49 mm        Canon EOS D30
23.22 mm        15.49 mm        Canon EOS D60
23.22 mm        15.49 mm        Canon EOS DIGITAL REBEL
23.04 mm        15.37 mm        Canon EOS DIGITAL REBEL XT
23.04 mm        15.37 mm        Canon EOS DIGITAL REBEL XTi
23.04 mm        15.37 mm        Canon EOS K236
23.22 mm        15.49 mm        Canon EOS Kiss Digital
23.04 mm        15.37 mm        Canon EOS Kiss Digital N
23.04 mm        15.37 mm        Canon EOS Kiss Digital X
1192.76 mm      215.44 mm       Canon EOS Kiss X2

- Phil

[Archive]

[Originally posted by boels069 on 2008-02-22 15:32:33-08]

Thanks Phil!

And (of course!) you are right about the 400D.

BTW: Thanks for a wonderful program that gives so much insight!