{"lens":{"id":"canon-ef-s","displayName":"Canon EF-S","manufacturer":"Canon","flangeDistanceMm":44,"electronicProtocol":"Canon EF"},"body":{"id":"fujifilm-x","displayName":"Fujifilm X","manufacturer":"Fujifilm","flangeDistanceMm":17.7,"electronicProtocol":"Fujifilm X"},"compat":{"lensMountId":"canon-ef-s","bodyMountId":"fujifilm-x","feasibility":"mechanical","af":"full","is":"full","aperture":"electronic","infinityFocus":"yes","adapterExamples":["Fringer EF-FX Pro II","Fringer EF-FX2"],"caveats":["Fringer drives phase-detect AF, IS and electronic aperture on EF-S lenses just as on EF — EF-S behaves as native EF electronically.","Unlike full-frame EF glass (which is 1.5× cropped on X-Trans), an EF-S lens's APS-C image circle matches the X-mount APS-C sensor exactly — no coverage wasted, no crop penalty."],"formatNote":{"match":"match","lensFormat":"APS-C","bodyFormat":"APS-C","cropFactor":null,"message":"Lens image circle (APS-C) matches body sensor (APS-C) — no crop or vignetting concern."}}}