Convert your Sirui 35mm f/1.8 anamorphic lens from MFT to Canon EF-M mount with this swappable Canon EF-M Mount Adapter from Sirui. Designed specifically to work with the MFT mount on the lens, this is a semipermanent lens mount adapter that fits on your lens' MFT mount and is attached with four screws using the included fine-tipped screwdriver. Please note, once your lens is adapted, you will need to switch full-frame cameras to APS-C to avoid vignetting.