The Zeiss Sonnar 150 f/4 is one of the two most classic Hasselblad lenses. These 150mm lenses flew numerous Apollo missions and shot on the moon. The classic shots of the Earth rising over the lunar surface are made with this lens. If you want Hasselblad Lunar, the lenses that shot almost everything on most missions were this 150mm and the 150mm; the other lenses rarely flew. The CF version moved to a rubber focus ring and a larger bayonet filter mount 60mm (B60 or Bay 60) filter. They have a newer Prontor shutter that also works with the focal-plane shutter Hasselblads. 150mm f/4 CF internal diagram. (optics are the same; the outsides of the glass are cut differently to fit in the different barrel and shutter). 4 elements in 3 groups.