Three old projector lens as shown for 8mm and 35mm projectors.
Superlux F=1" F/1.6 this 63 mm long and 19 mm diameter
Eumig Eupronar 1:1,4 F20 this is 53 mm long and 23 mm diameter
Aldis 8.5cm Anstigmat this is 72 mm long and is 46 mm diameter
All look ok and clear as shown.