Digital BW, The Print

I do not know whether it is true that HCB only used the 50 mm. Newton used lots of different cameras and lenses. Some of them are exposed in the Berlin Museum of Photography, built up with Newton's heritage and very recommendable for everyone who has the chance to visit it.
Newton called himself "A Gun for Hire" - but this he has in common with many famous painters.
I think he disliked the expression artist because it sounded pretentious to him.