I'm using exr files and they get stripped of exif data. It would be great if I could just input focal length/f-stop/iso/35mm focal into the appropriate fields for multiple selected photos. Doesn't seem too hard, but exiftool won't write to .exr and I'm having trouble figuring out a way to batch change the exif data of these files. I'd rather not convert the files, but I suppose I can if necessary. Let me know if there is any other way of accomplishing this. Thanks.