Canon EF 50mm f/1.8 STM Lens User Manual

Quick Guide

This lens is a compact, lightweight, high-quality standard lens designed for Canon cameras. Before using the lens, ensure your camera firmware is updated to the latest version via the Canon website. Always handle the lens with care, avoiding direct sunlight and extreme temperature changes to prevent condensation or malfunction.

Nomenclature

The lens features the following components:

• Focusing ring: Used for manual focus adjustments.
• Hood mount: Attachment point for the ES-68 hood.
• Filter mounting thread: 49mm thread for attaching filters.
• Focus mode switch: Toggles between AF (Autofocus) and MF (Manual Focus).
• Lens mount index: Alignment mark for attaching the lens to the camera.
• Contacts: Electronic communication points between lens and camera.

Mounting and Detaching

Refer to your camera's specific instructions for mounting and detaching the lens. When the lens is detached, place it with the rear end up to prevent scratches. If the contacts become soiled or have fingerprints, clean them with a soft cloth to prevent faulty connections. To attach the dust cap, align the lens mount index with the circle index on the cap and turn clockwise.

Setting the Focus Mode

To switch between focus modes, use the focus mode switch on the side of the lens:

• Autofocus (AF): Set the switch to AF.
• Manual Focus (MF): Set the switch to MF and rotate the focusing ring to adjust focus.

Note: If the camera is in ONE SHOT AF mode, you can perform full-time manual focus by pressing the shutter button halfway and turning the focusing ring. The focus cannot be adjusted in MF mode while the camera is off.

Accessories

Hood (ES-68): Helps block unwanted light and protects the lens. Align the hood's attachment mark with the red dot on the lens and turn until the red dot aligns with the hood's stop position mark. The hood can be reverse-mounted for storage.

Filters: You can attach 49mm filters to the front of the lens. Only one filter may be attached at a time.

Extension Tubes: You can use EF12 II or EF25 II extension tubes for magnified shots. MF mode is recommended for accurate focusing when using these tubes.

Handling and Maintenance

To prevent condensation when moving the lens between cold and warm environments, place the lens in an airtight plastic bag and allow it to warm up gradually. Do not leave the lens in excessive heat, such as in a car in direct sunlight. If the lens is in sleep mode, press the shutter button halfway to recover.

Specifications

Key technical specifications include:

• Filter diameter: 49mm
• Min. focusing distance: 0.35m / 1.15ft
• Weight: 160g / 5.7oz
• Max. magnification: 0.21x
• Lens construction: 5-6 elements