Views
427
Replies
2
Status
Closed
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>
Master Retouching Hair
Learn how to rescue details, remove flyaways, add volume, and enhance the definition of hair in any photo. We break down every tool and technique in Photoshop to get picture-perfect hair, every time.