Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013
posted February 15, 2015 03:05 PM
Hi Clyde, The original range of lenses for the 641, 642 series from the early 1960s included a 25mm, 32mm and 40mm made by Rank Taylor Hobson. I have a 32mm and a 40mm lens.
Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013
posted February 16, 2015 04:00 AM
Clyde, All these lenses were F1.4. There were also lenses made by Dallmeyer in Bell & Howell 52mm sleeves including a 0.8 inch but they were all around F1.9 and thus they were not ideal for a large picture.