Gidi Morris wrote:Do I have to modify the camera? Can't I just use the filter and then
this tutorial
?
Thanks guys
Nope, you don't have to modify the camera. Folks that do have an easier time of things though as they can see the picture through the viewfinder which makes framing & focussing easier.
Without modifying the camera you need a very strong filter which looks almost black so you can't see through it. This means extra-long exposure times so tripod becomes essential. You have to compose the shot, focus, then put the filter on to take the picture which becomes tedious. I have a IR filter and have played with a few shots but haven't yet had the "eureka" moment yet, still, there's always next time. 
some fairly old canon camera stuff, canon lenses, Manfrotto "thingy", and an M5, also an M6 that has had a 720nm filter bolted onto the sensor:
TF posting: here 