{"lens":{"id":"olympus-om","displayName":"Olympus OM","manufacturer":"Olympus","flangeDistanceMm":46,"electronicProtocol":"mechanical-only"},"body":{"id":"fujifilm-x","displayName":"Fujifilm X","manufacturer":"Fujifilm","flangeDistanceMm":17.7,"electronicProtocol":"Fujifilm X"},"compat":{"lensMountId":"olympus-om","bodyMountId":"fujifilm-x","feasibility":"mechanical","af":"n/a","is":"n/a","aperture":"manual-ring","infinityFocus":"yes","adapterExamples":["K&F Concept OM-FX","Fotodiox Pro OM-FX","Urth OM to Fujifilm X"],"caveats":["28.3 mm flange clearance — comfortable adapter thickness.","Manual focus + manual aperture only. 1.5× APS-C crop turns a 50 mm Zuiko into a 75 mm-equivalent FOV, useful for portrait reach from compact glass."],"formatNote":{"match":"lens-larger-than-body","lensFormat":"full-frame","bodyFormat":"APS-C","cropFactor":1.5,"message":"Lens covers full-frame; body is APS-C — 1.5× crop factor applies relative to the lens's native image circle. No vignetting; the body uses the centre of the lens."}}}