GYRO SENSOR UNIT CY1-2838 for Canon EF 100-400mm F/4.5-5.6L IS USM
" GYRO SENSOR UNIT " for Canon EF 100-400mm F/4.5-5.6L IS USM lens, part number: CY1-2838-000. - CY1-2838-000 1x GYRO SENSOR UNIT. Pulled form lens with defective aperture flex (err01) with mounting screws.