Distagon 40mm T*

This must have been asked before but I couldn't find the thread! It's seems clear this lens should be used with rubber hood wherever/whenever possible. Is it possible to mount both a filter and the hood on the lens at the same time - I think not but will bow to any available expertise!

Thinking of getting the lens - the CF FLE is a bit out of my reach and other than weight there's no contra indications about this version whatso ever!

Thank you