Santa brought me an OM-1 Mark II & a 90mm macro lens & flash. I needed to add a handle to the left side, so I needed a cage or an L bracket/plate.
Found that only two brands make them for the OM-1; I bought them, both are very well made. One brand makes a simple L bracket that lacks mounting holes on the left side. But the Leofoto LPO-OM-1 L Plate *has* the mounting holes. Bought the handle and mounted it with ease. Thank you, Leofoto!