If you're looking at my photos here, I definitely prefer my Beef Wellington on the rare side of medium rare. I took these out of the oven at 110F. Take them out a 115 or 120, and they will be exactly medium rare. Keep in mind, you want the end temperature to be 125F-130F, and these will keep cooking after they come out of the oven. That's why you need to take them out a few degrees early.