Hundreds of Little Suns

The summer is leaning towards it's last third. Wonderful warm sunny day today, +28,5C. Nice steak and beer & Italian red to go with it, welcome weekend!

It's my first HDR image (actually Jarno helped with it) and to my surprise it went to be moderated because of not having the date/exif files. Any suggestions on how to maintain the exif files when turning image (or 3 into 1) HDR in PS (I think we have CS3) and then in LR?

Please, view it large...