nobbylon
Veteran
An idea for all those with this lens. If yours, like mine has that annoying loose lens hood, I got a tire innertube from a bicycle (black of course) cut a small section the same depth as the extended hood and just fitted it around. The end result is a hood that no longer rattles, stays extended and is also protected from knocks and scrapes. The only downside is you can't retract the hood. Should also work on those later summicrons with the extendable hood. Just an idea!