I have a G1 & just received some Heliopan UV filters for my 45mm & 90mm. The lens hood for the 45 does not seem to fit the new filter. The size is OK, but the hood runs out of thread before it is tight. The hood & filter seem to only have a small area that is threaded & the filter threads pass this point & then gets loose. It may stay on, but it rattles (not acceptable). Is there a work-around or am I stuck?