A:AnswerThis camera can take both compact flash and sd cards. Any size or speed will do however if you plan on using this for video i would recommend going with a card rated for it.
A:AnswerNo, those are crop lenses. You want EF lenses not EFS. Basically the cheaper Canon lens will have a white or white and red dot. White only is for crop cameras and red would be compatible with full frame. If you’re moving to a full frame camera be prepared to spend a considerable amount on new lenses. Of course with with a better camera and better glass you get much better quality.
A:AnswerNo, it won't. The 5D mk. IV is a full-frame camera, and the EF-S series of lenses is specifically for crop sensor cameras like the Rebel series.
