Thanks EEngr, didn't have the time during the negotiation to check the EXIF data.
Still a surprisingly good picture for that camera and that lense. Remember, its not a full format sensor, therefore there is a 1.6 factor that needs to be applied to get the full format equivalent focal length. Except if the EXIF data takes that already into account.
Anyway, i always have the impression i can see far more stars from the flightdeck during cruise than on the ground. And that is actually quite natural, as we are above most of the air pollution and usually have no other lights than those in the flightdeck around.