Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens User Manual

1. Introduction

This manual provides essential information for the safe and effective use of your Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens. This ultra-wide angle zoom lens is designed for EOS cameras equipped with an APS-C sensor, offering a broad perspective suitable for various photographic applications, including landscapes, architecture, and interior shots. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity.

2. Product Overview and Key Features

The Canon EF-S 10-18mm f/4.5-5.6 IS STM lens combines advanced optical design with cutting-edge performance. It features a 4-group optical zoom system, incorporating a large-diameter element, an aspherical lens element, and a UD lens element to deliver high-contrast, high-resolution images with minimal glare and aberration. Enhanced lens coatings further contribute to image quality.

Key features include:

• EF-S Ultra-Wide Zoom Lens: Provides a broad field of view, ideal for capturing expansive scenes.
• Stepping Motor (STM): Ensures smooth, quiet, and continuous autofocus, particularly beneficial for video recording.
• Optical Image Stabilizer (IS): Offers up to four equivalent stops of shake correction, enhancing sharpness in low-light conditions or when shooting handheld.
• Circular 7-Blade Aperture: Contributes to attractive background blur (bokeh).
• Rear Focusing System: Allows for quick and precise autofocus.
• Full-Time Manual Focus: Enables manual focus adjustments even when in autofocus mode.
• Compact and Lightweight Design: Facilitates portability and ease of use.

Figure 1: Front view of the Canon EF-S 10-18mm f/4.5-5.6 IS STM lens, showing the zoom ring, focus ring, and lens markings.

Figure 2: Rear view of the Canon EF-S 10-18mm f/4.5-5.6 IS STM lens, showing the lens mount and control switches.

3. Compatibility

The Canon EF-S 10-18mm f/4.5-5.6 IS STM lens is specifically designed for Canon EOS cameras that utilize an APS-C sensor and are compatible with EF-S lenses. It is important to ensure your camera body supports EF-S lenses for proper functionality.

As of March 2014, compatible EOS camera models include:

• EOS 7D, EOS 70D, EOS 60D, EOS 60Da
• EOS 50D, EOS 40D, EOS 30D, EOS 20D, EOS 20Da
• EOS REBEL T5i/700D, EOS REBEL SL1/100D, EOS REBEL T4i/650D, EOS REBEL T3i/600D
• EOS REBEL T2i/550D, EOS REBEL T1i/500D, EOS REBEL XSi/450D, EOS REBEL T3/1000D
• EOS REBEL XS/1000D, EOS DIGITAL REBEL XTi/400D DIGITAL
• EOS DIGITAL REBEL XT/350D DIGITAL, EOS DIGITAL REBEL/300D DIGITAL
• EOS M2 and EOS M (when used with Mount Adapter EF-EOS M)

Figure 3: Excerpt from the original manual detailing compatible EOS camera models.

4. Setup and Installation

4.1 Attaching the Lens

1. Ensure both the camera and lens are powered off.
2. Remove the rear lens cap from the lens and the body cap from the camera.
3. Align the red index mark on the lens with the red index mark on the camera's lens mount.
4. Insert the lens into the camera mount and turn it clockwise until it clicks into place.

4.2 Removing the Lens

1. Ensure the camera is powered off.
2. While pressing the lens release button on the camera body, turn the lens counter-clockwise until it stops.
3. Remove the lens from the camera.
4. Attach the rear lens cap to the removed lens and the body cap to the camera.

4.3 Attaching/Removing Lens Caps

Always keep the front and rear lens caps attached when the lens is not in use to protect the optical elements from dust, scratches, and impact.

Figure 4: Front lens cap, typically used to protect the front element.

Figure 5: Rear lens cap, used to protect the rear element and lens mount.

5. Operating the Lens

5.1 Autofocus (AF) / Manual Focus (MF) Switch

The lens features a switch to select between autofocus and manual focus modes. Locate the AF/MF switch on the side of the lens barrel.

• Set to AF for automatic focusing. The camera will control the focus.
• Set to MF for manual focusing. You will need to rotate the focus ring to adjust focus.

5.2 Image Stabilizer (IS) Switch

The Optical Image Stabilizer helps reduce blur caused by camera shake. Locate the STABILIZER ON/OFF switch on the side of the lens barrel.

• Set to ON to activate the Image Stabilizer. This is recommended for handheld shooting, especially in low light.
• Set to OFF when using a tripod or when the shutter speed is fast enough to prevent blur.

Figure 6: Location of the AF/MF and STABILIZER ON/OFF switches on the lens barrel.

5.3 Zooming

To adjust the focal length, rotate the zoom ring on the lens barrel. The lens allows zooming between 10mm and 18mm.

• Always complete zooming before focusing to avoid affecting focus accuracy.
• Rapid rotation of the zoom ring may temporarily cause blurring.
• Zooming while the camera is off may result in delayed focus when powered on.
• Avoid zooming during a still image exposure, as this can cause light streaks in the captured image.

Figure 7: The zoom ring is the wider, ribbed ring on the lens barrel, marked with focal lengths 10, 12, 14, 16, 18mm.

5.4 Focusing

The lens utilizes a rear focusing system for efficient autofocus. When the AF/MF switch is set to AF, the camera will automatically focus when the shutter button is half-pressed.

For manual focusing, set the AF/MF switch to MF and rotate the front focus ring until your subject appears sharp in the viewfinder or on the LCD screen. The lens also supports full-time manual focus, allowing fine adjustments even in AF mode by rotating the focus ring after autofocus has been achieved.

6. Care and Maintenance

Proper care and maintenance will extend the life and performance of your lens.

• Cleaning the Lens: Use a soft, lint-free cloth, preferably a microfiber cloth, to gently wipe dust from the lens surfaces. For stubborn smudges or fingerprints, use a specialized lens cleaning solution applied to the cloth, not directly to the lens. Avoid touching the glass elements with your fingers.
• Cleaning the Lens Body: Use a soft, dry cloth to clean the exterior of the lens. Do not use organic solvents such as paint thinner or benzene.
• Storage: When not in use, store the lens with both front and rear caps attached in a cool, dry, and well-ventilated area, away from direct sunlight and high humidity. Consider using a desiccant to prevent mold growth if storing for extended periods in humid environments.
• Handling: Avoid exposing the lens to sudden temperature changes, which can cause condensation. Protect the lens from strong shocks or vibrations.

7. Troubleshooting

If you encounter issues with your lens, refer to the following common problems and solutions:

• Lens not focusing:
  • Ensure the AF/MF switch on the lens is set to AF for autofocus.
  • Check the camera's focus mode settings.
  • Ensure there is sufficient light and contrast for the autofocus system to work effectively.
• Images appear blurry:
  • Verify that the Image Stabilizer (IS) switch is set to ON if shooting handheld.
  • Check your camera's shutter speed; a faster shutter speed can reduce motion blur.
  • Ensure the lens and camera are securely mounted.
• Lens not recognized by camera:
  • Ensure the lens is correctly attached to the camera body and has clicked into place.
  • Clean the electrical contacts on both the lens mount and camera body with a clean, dry cloth.
  • Power cycle the camera (turn off, remove battery, reinsert, turn on).
• Unusual noises from the lens:
  • The STM motor is designed to be quiet, but slight operational sounds during focusing are normal.
  • If the noise is loud or unusual, discontinue use and contact Canon service.

For issues not covered here, please consult the camera's instruction manual or contact Canon customer support.

8. Specifications

9. Warranty and Support

This product comes with a FULL 14 DAY SATISFACTION GUARANTEE AND A 90 DAY PARTS AND LABOR WARRANTY. Please retain your proof of purchase for warranty claims.

For technical support, service, or further inquiries, please visit the official Canon website or contact Canon customer service in your region. You can often find additional resources, FAQs, and software updates on the manufacturer's support pages.

Official Canon Website: www.usa.canon.com