Prime time

[ewx]

naath made the mistake of sitting still shortly after I got a new lens.

$ jhead  naath.jpeg 
File name    : naath.jpeg
File size    : 212300 bytes
File date    : 2005:08:05 23:52:10
Camera make  : Canon
Camera model : Canon EOS 350D DIGITAL
Date/Time    : 2005:08:02 23:39:19
Resolution   : 341 x 512
Flash used   : Yes
Focal length : 50.0mm  (35mm equivalent: 547mm)
CCD width    : 3.29mm
Exposure time: 0.040 s  (1/25)
Aperture     : f/1.8
ISO equiv.   : 200
Exposure     : aperture priority (semi-auto)
Jpeg process : Baseline

I'm not sure what's gone wrong with the CCD width value there...

Comments

[sparrowsion]

not sure what's gone wrong with the CCD width value

I'm not entirely convinced by the 35mm equivalent value either, which would put you at a guess several metres above the car parking area…. But I guess it's calculating that off the CCD width.

[ewx.livejournal.com]

Yes, the "equivalent focal length" is calculated from the sensor size and real focal length. It's a misnomer anyway - for anything except the angle of view the real focal length is the one that matters.