I think you can also focus to infinity outside in daylight with a bit of tape or donor film in the gate, although the methods that @danb have linked to look far more accurate
I've not tried it yet, that was more testament to my DIY abilities! I have just messed around with putting my Bronica focusing screen on the film plane should I get that far
Yeah @TooTallTim It should be recoverable.
I think you can also focus to infinity outside in daylight with a bit of tape or donor film in the gate, although the methods that @danb have linked to look far more accurate