The Exa IIa is a 35 mm SLR camera made by Ihagee in 1963-4. It is similar to the Exa II, but has the sloped ends to the top housing of later Exas. It has the standard Exacta bayonet lens mount, a fixed pentaprism viewfinder, and lever film advance. It does not have an instant-return mirror. It does not have a hinged back; for loading, the back and base of the camera detach completely. Like many Exacta cameras, authorities recognise sub-types; however, McKeown only identifies a type 1 without strap lugs, and type 2 with them.