Check the link he gave, the focal lens is stated as 0 mm.
I will try it later with my A900 (I have both 50mmF1.8 DT and 50mmF1.4), once I back home. I never use the DT lens on my A900, but I did enable APS-C when using a FF lens. I remember, The file size is smaller.
The focal length would be gibberish cos he depressed the lens release... technically the lens is no longer communicating with the body. I checked the Flickr account but the photos are all downressed with no EXIF... I have no information about the original file size though... I think only pbase now allows full sized uploads and only in the paid accounts...
