Lens information and focal length (35mm) not showing up

I'm using a Canon 20D with several L lenses and I have yet to see any information show up in the Focal Length (35mm) field, or any of the lens information fields. I would think this would be a pretty common combination and I'm wondering if there is anything I can do to get this information.

For focal length, since it does know my camera type (i.e. 20D) can't they just multiply all the lens focal lengths by 1.6 my FOVCF?

Intel iMac 20", Mac OS X (10.4.7)

Posted on Jul 1, 2006 9:52 AM

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8 replies

Jul 22, 2006 3:22 PM in response to Joseph Martin3

Sounds like a bug in parsing the EXIF data. I think most of the details of the way each camera/manufacture sets up the data and order that it appears is hidden to the world. I would check with a different program to see if it shows you the data you want already, and then file a bug report with Apple [how - I don't know...]. I'd use GraphicConverter for starters. AP works fine with my Minolta kit, so I'm sure that there are way more 20D users out there than 7D...

k.

Aug 17, 2006 12:49 PM in response to goodbyenine

I have a Nikon D200 and the actual focal length and the 35mm equivalent show up in the EXIF data but not the type of lens. Every other program I've used identifies the lens by name, why not in Aperture. I consider knowing which specific lens I used to be more important than the 35mm equivalent. Is there a fix or a work around, or am I doing something wrong?

Aug 18, 2006 3:48 AM in response to Joseph Martin3

the sensor size in the camera does not alter the focal length of the lens - it just results in an image with a different field of view to a different sensor size. Focal length is a characteristic of the lens and has nothing whatsoever to do with the camera body it is attached to.

The lens will always be a 28mm or 50mm etc so why would Aperture or any other software say it is a 45mm or 80mm lens? The image will not look the same as if you had taken it with an actual 45mm or 80mm lens, so it would be incorrect to show it as such...

Aperture should simply show the actual focal length for each image - we translate that to whatever is helpful for us to understand the results.

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Lens information and focal length (35mm) not showing up

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