 The top control wheels are sunk into the top plate, with knurled edges protruding at the front where they can easily be operated by the photographer's fingertips.The R8 is substantially larger and heavier than the R4-R7 series cameras, being about a third heavier at 890g than the R7.This is partly explained by being built to take and balance the heavier zoom lenses in the Leica R lens range.