je viens de trouver ça, mais si plus que moi vous savez...
"After the success of the American Remopak (and other such items, including one made by Jacobsen), Nikon finally released a fairly compact battery unit for the F36, one which does not interfere with bellows units or any lens, including fisheye types. A nice bonus is the scalloped handle, which allows the self-timer lever to be turned, set, and operated (although self-timer with a motordrive isn't really necessary, and Nikon got rid of this "feature" with the MD-1/2). The Cordless Pack accepts 8 1.5V "AA"-type cells."