This one is probably a no-brainer to every Rolleiflex user but me but after reading pertinent threads I'm still not completely certain if I will be able to use a Heliopan lens hood and basic filters at the same time on my Rollei 2.8C (Bay III). Just a yea or nay will cover me here. And if anyone would comment on the sharper image with a lens hood vs. no lens hood I would be curious to hear an opinion. I've been using my hand, hat etc. to reduce flare and it seems, subjectively, (as I have nothing to compare it to) to be working fine. I detect no flaring and the images are perfectly sharp. A sincere thank you to all respondants.