What's the purpose of the lens-hood? To me it looks just like a piece of plastic with no real function?
for me its used in outdoor to fight the sunlit destrying your image?
The plastic covering the optical viewfinder: I can't mount it on the camera?
you have to remove the ruber pust it upward before you ca attach that eye piece cover
and finally: During unpacking the camera, I accidentally strafed the 14-42 lense with my finger. What do I need to clean it, if it is dirty? Can I use normal window-polishes or do I have to get a special cleaning kit?
Don't ever mess with the lens cleaning it with that with it is not really sure better ask for the store where you buy that.
do I have to get a special cleaning kit?
Its a must, for me though, if you are too careless like me i recomend get a uv filter to protect it for now...
i hope it helped you... but wait till pro see this post and correct me if i'm wrong...