Canon EOS 55 (AKA Elan IIE)  type_Continuous Lighting which might be handy if

which might be handy if remotely firing EL-style cameras is what you need to do

This Metabones adapter allows Olympus OM mount lenses to mount to Micro Four Thirds cameras

The Canon EF 35mm f2 IS USM is a bit bigger than your average 35mm f2

Minor coating marks- nothing that'll cause trouble- and otherwise clean glass

Canon EOS 55 (AKA Elan IIE) &nbsptype_Continuous Lighting which might be handy ifThe Canon EOS 55 is a versatile autofocus 35mm SLR camera with full manual or autoexposure, manual or auto focus, and a built in flash; it also features Canon's usually pretty effective Eye Control Focus, which lets you control the focus point just by looking, and a switchable "panorama" mode. Light cosmetic wear, mostly on flash cover, good function. Battery is included, lens is not.