This item: MasterPieces Collegiate Kentucky Wildcats 1000 Piece Stadium (Basketball) Panoramic Jigsaw Puzzle $14.00 In Stock. Ships from and sold by Amazon.com.
1 EF-S lenses feature a protective pin that stops these lenses from being mounted on a full-frame EOS camera.  EF-M â a new lens format specifically designed for the Canon EOS M mirrorless camera system with EF-M mount. Just like the EF-S lenses, EF-M are designed for APS-C sensor cameras.
AF is a generic industry-wide designation for auto focus. EF is Canon's designation for the lens mount on all EOS series cameras---you're 10D. and 20D (as well as a whole slew of 35mm film cameras) have the EF mount. EF-S is a variation of the EF mount---it's specific to newer digital cameras with the. APS-sized sensor.