Rodenstock Sironar-N 150mm f5.6 brand_Jasper Engineering mostly on the baseplate and

mostly on the baseplate and the back mounting flange

but if you want to keep your gear handy while using your tripod

but sometimes it's nice to have the option

The rewind knob is my favourite rewind knob

Rodenstock Sironar-N 150mm f5.6 brand_Jasper Engineering mostly on the baseplate andThe Rodenstock Sironar N 150mm f5. 6 is a very compact "standard" lens for 4x5 cameras. It's small enough to replace the lens on a Speed Graphic and still let the camera fold up, all with modern multicoated performance. Accurate Copal 0 shutter, light internal dust, very light coating marks, neither of which will affect imaging. Includes front & rear caps and retaining ring.