Originally posted by audiobomber Any rubber hood with internal threads will allow you to use the original lens cap. I have several. I don't see why the Heliopan is so pricey. Being able to collapse halfway is not useful for a prime lens, only a zoom.
Possibly since I have only 1, but the other ones seem take smaller lens caps then the original. For instance one of the above mentioned hoods accepts 55mm caps. Plus I was only playing it safe. I doubted that the original hood was causing any problems, but if this rubber one did I could collapse it some.