Thanks for this, Mark.

I tried IR film a few times in the 70s and 80s but had little to no success. It was expensive so I “parked it”. A few years ago, I found a 720nm converted Fuji X-T20 in my favourite camera emporium, so I bought it. The next issue was “hotspots” with certain lenses. Thankfully, I soon got that worked out.

The benefit of the digital option is that shutter speeds and ISO are the same as non-IR - so you can shoot hand-held.

I do have a roll of SFX and an R72 filter, so I think I might use them this summer and compare with digital at the same shoot.