I just picked up 5N today. I went for the kit with the 18-55 and the 16mm. Picking up the 16mm with the kit with the 18-55 is a great deal since with the rebate, the 16 mm pancake cost only $50 additional. However, the dealer did not have the 16mm in stock but will have it on Monday so I have to make another trip to the store to pick it up. He did show me the 16mm which he could not sell to me since it was part of another camera. I did notice that the 16mm is packaged with both the front and rear cap. As you indicated the camera with the 18-55 comes only with the front cap. On page 20 of the instruction manual, there is this statement "When you want to use body caps or rear lens caps, please purchase ALC-BIEM (Body cap) or ALC-RAIEM (rear lens cap) (sold separately)". While you can purchase the two caps, I am not pleased that Sony did not include both caps with the 5N/ 18-55 kit.