We know this about 60mm lens used on the lunar Hassselblad cameras. It had a minimum f-stop of F5.6. The film used was either ASA100 or ASA160 (take your pick)
Now Mr. Straydog, what would be the required shutter speed to expose starlight on film given the lens at F5.6 and the ASA at 100 or 160.
Edit to correct the minimum f-stop of the 60mm lens which was F5.6 not F4
Edited by dogcatcher, 26 December 2006 - 07:13 PM.