(answering raid): Yes, but then you must take two cameras with you. And a 50mm lens is different on an M8 than on an M9. The image field of an M8 is smaller, so a 50mm lens on an M8 is like a 75mm on an M9.
I would like to have one camera with two lenses, a 35mm and a 50mm. When the lenses share hoods and lens caps, life would be easier, but in reality this is quite hard to achieve, because the lenses have different sizes and viewing angles. Rear caps is no problem, but I would like to have two identical lens hoods (as small as possible) to use on both the 35mm and the 50mm. These hoods must accept a lens cap on the front.
I am now testing the 12550 lens hood from Leitz (that is made for the Elmar-M) on the replica, but I am afraid that it vignettes or produces dark corners.
Erik.