Joining the 8mm, 14mm, 35mm, and 85mm manual-focus, full-frame Rokinons, this 24mm boasts the highest street price ($699) in the line by far. Like Rokinon’s 35mm f/1.4, it provides no electronic communication between camera and lens, requiring users to open the aperture to its widest setting for composing and focusing, then stop down to the working aperture to make the exposure. The good news? Your camera’s aperture-priority autoexposure mode will work—after a fashion.