Instructions ENG
Thank you for purchasing a Canon product. Canon RF50mm F1.8 STM is a standard lens for use with EOS R series cameras. zz“STM” stands for Stepping Motor. Camera Firmware Please use the latest version of firmware with the camera in use. For details on whether the firmware is the latest version or not, and for details on updating the firmware, please check the Canon website. Conventions used in these instructions Warning to prevent lens or camera malfunction or damage.
Safety Precautions Precautions to ensure that the camera is used safely. Read these precautions thoroughly. Make sure all details are observed in order to prevent risks and injury to the user and other people. Warning Details pertaining to risks that may result in death or serious injury. zz Do not look directly at the sun or other strong light sources through a lens. This may result in loss of sight. zz Do not leave a lens in the sun without the lens cap attached.
General Precautions Handling Precautions Shooting Precautions zz Do not leave the product in excessive heat such as in a car in direct sunlight. High temperatures can cause the product to malfunction. zz If the lens is taken from a cold environment into a warm one, condensation may develop on the lens surface and internal parts. To prevent condensation in this case, first put the lens into an airtight plastic bag before taking it from a cold to warm environment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Do not make any changes or modifications to the equipment unless otherwise specified in the instructions. If such changes or modifications should be made, you could be required to stop operation of the equipment.
Nomenclature Focusing/control ring (→ 7) Hood mount (→ 9) Filter mounting thread (→ 10) Focusing/control selector switch (→ 7) Lens mount index (→ 6) Contacts (→ 6) Lens mount (→ 6) zz For detailed information, reference page numbers are provided in parentheses (→ **).
1. Attaching and Detaching the Lens Lens mount index Lens release button Dust cap Attaching the Lens Align the lens mount indexes of the lens and camera, and turn the lens clockwise until you hear a click. Detaching the Lens Turn the lens counterclockwise while pressing the camera’s lens release button. Detach the lens once it has stopped turning. zzSet the camera’s power switch to OFF when attaching or detaching the lens. zzAttach the lens cap before detaching the lens from the camera.
2. Focusing/control ring The focusing/control ring can be used as either a focusing ring or a control ring. Focusing/control ring Focusing/control selector switch Use as a Focusing Ring Set the focusing/control selector switch to FOCUS. Set the focus mode (AF/MF) using the camera’s menu. To shoot in autofocus (AF) mode, set the camera’s focus mode to AF. To use only manual focusing (MF), set the camera’s focus mode to MF, and focus by turning the focusing ring (focusing/control ring).
Focusing/control ring The focusing/control ring can be used as either a focusing ring or a control ring. Focusing/control ring Focusing/control selector switch Use as a Control Ring Set the focusing/control selector switch to CONTROL. Set the control ring function using the camera’s menu. The control ring can be assigned the functions that are commonly used with cameras, such as shutter speed and aperture settings. Please refer to the camera’s instructions for details on how to use the control ring.
3. Hood (Sold separately) The custom lens hood reduces unwanted light that causes flare and ghosting and protects the front of the lens from rain, snow, and dust. Attachment position mark Red dot Button Red dot Attachment position mark Red dot Stop position mark Attaching the Hood Align the red attachment position mark on the hood with the red dot on the front of the lens, and then turn the hood in the direction of the arrow until you hear a click.
4. Filters (Sold separately) You can attach filters to the filter mounting thread on the front of the lens. zzOnly one filter may be attached.
Specifications Focal Length/Aperture Lens Construction Maximum Aperture Minimum Aperture Angle of View Min. Focusing Distance Max. Magnification Field of View Filter Diameter Max. Diameter and Length Weight Hood Lens Cap Case 50mm f/1.8 5 groups, 6 elements f/1.8 f/22 Horizontal: 40°, Vertical: 27°, Diagonal: 46° 0.30 m/0.98 ft. 0.25x Approx. 145 x 96 mm/5.71 x 3.78 in. (at 0.30 m/0.98 ft.) 43 mm Approx. 69.2 x 40.5 mm/2.72 x 1.59 in. Approx. 160 g/5.64 oz.
CT1-D179-A 0620Ni © CANON INC.
