I haven't bothered with my R72 filter since August when I took it on holiday to Jersey. The shots using the filter on the Canon 400D were so disappointing that I decided to put the filter away. However, encouraged by a wonderful IR shot uploaded by greenbunion the other day I decided to get the R72 out again and try it on my wife's little Ricoh GX100.
This was taken hand-holding the IR filter in front of the Ricoh's lens and I must say I'm v pleased with the results. The exposure times on the Ricoh are much lower compared to the Canon's and the shot has more contrast without a noticable hotspot that used to dog the Canon shots.
I wonder how long it'll be before my wife notices her camera has gone :-)