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Please advise if CS2 is communicating correctly with the DNG and JPG file formats in retrieving Exif aperture values. I am getting some strange results.
First off, please confirm that the Exif property, "Aperture Value" is supposed to be the diameter of the aperture in mm.
As an example, with L=70, F=1/22 you expect aperture = 3.2. When I apply the depth of field lever, the aperture looks like about 3 mm diameter. However, Photoshop gives me "Aperture Value" of 8.9. I tried other values of L (28, 50, 90 mm) with F=1/8. The aperture value was consistently 6.0. See this link for results of testing to date.
Any ideas appreciated. <http://photo.enw-ltd.com/ApertureData.htm>
First off, please confirm that the Exif property, "Aperture Value" is supposed to be the diameter of the aperture in mm.
As an example, with L=70, F=1/22 you expect aperture = 3.2. When I apply the depth of field lever, the aperture looks like about 3 mm diameter. However, Photoshop gives me "Aperture Value" of 8.9. I tried other values of L (28, 50, 90 mm) with F=1/8. The aperture value was consistently 6.0. See this link for results of testing to date.
Any ideas appreciated. <http://photo.enw-ltd.com/ApertureData.htm>
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