Hello!, i don´t know if this is possible but it would be nice to have an in-program possibility to import the EXIF data of any desired image , to the current project images, sometimes you loose all exif data when you create .hdr files and you have to put it all again in APG manually.
What is important for sitching is first the focal length ( and the fact that an image is fisheye or not ). This is a key value. Then the speed, aperture is here just for HDR. --- BTW : autopano will transfer all other EXIF value from input to output ( if the format allows it ).