Canon EF 100mm f/2.8 Macro USM Lens Instruction Manual

Introduction

This manual provides essential instructions for the safe and effective use of your Canon EF 100mm f/2.8 Macro USM Lens. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity. This lens is designed for Canon SLR cameras and specializes in macro photography, allowing for detailed close-up views of small subjects.

Product Overview

The Canon EF 100mm f/2.8 Macro USM Lens is a high-performance macro lens featuring a 100mm fixed focal length and a bright f/2.8 maximum aperture. It incorporates a three-group floating system for exceptional close-up performance and a secondary diaphragm to enhance contrast at wide apertures. The Ultra-Sonic Motor (USM) provides fast and quiet autofocusing. This lens offers full-time manual focus override.

Figure 1: Front view of the Canon EF 100mm f/2.8 Macro USM Lens. This image displays the lens barrel, focusing ring, and the Canon branding, highlighting its robust construction.

Figure 2: Side view of the Canon EF 100mm f/2.8 Macro USM Lens, showing the AF/MF switch and focus limiter switch. This view illustrates the controls for switching between autofocus and manual focus, and for limiting the focus range.

Setup and Installation

1. Attaching the Lens:
   • Ensure both the camera and lens are powered off.
   • Align the red index mark on the lens with the red index mark on the camera body.
   • Rotate the lens clockwise until it clicks into place.
2. Detaching the Lens:
   • Ensure the camera is powered off.
   • Press and hold the lens release button on the camera body.
   • Rotate the lens counter-clockwise until it detaches.
   • Attach the rear lens cap and camera body cap immediately to protect the sensor and lens elements.

Operating the Lens

Autofocus (AF) and Manual Focus (MF)

• AF/MF Switch: Locate the AF/MF switch on the side of the lens barrel.
  • Set to AF for automatic focusing.
  • Set to MF for manual focusing.
• Full-Time Manual Focus: Even when the lens is set to AF, you can manually adjust focus by rotating the focusing ring after the autofocus has achieved focus. This allows for fine-tuning without switching to MF mode.

Focus Limiter Switch

The lens features a focus limiter switch to optimize autofocus speed by restricting the focus range. This is particularly useful in macro photography to prevent the lens from hunting across its entire focus range.

• FULL (0.31m - ∞): The lens will focus across its entire range, from the closest focusing distance (0.31 meters or 1 foot) to infinity. Use this setting for general photography where subjects may be at varying distances.
• 0.48m - ∞: Limits the focus range from 0.48 meters to infinity. This setting is suitable for non-macro subjects and can speed up autofocus performance by excluding the very close focus range.
• 0.31m - 0.48m: Limits the focus range to the macro range, from 0.31 meters to 0.48 meters. This setting is ideal for dedicated macro shooting, significantly reducing focus hunting when working with very close subjects.

Macro Photography Tips

• For critical focus in macro, consider using manual focus with Live View on your camera for precise adjustments.
• Use a tripod to stabilize the camera and lens, especially at high magnifications, to prevent camera shake.
• Adequate lighting is crucial for macro photography. Consider using a ring flash or twin flash for even illumination.
• Experiment with aperture settings. While f/2.8 offers shallow depth of field, stopping down to f/8 or f/11 can provide more of the subject in focus.

Maintenance and Care

• Cleaning the Lens:
  • Use a blower brush to remove dust and loose particles from the lens surfaces.
  • For smudges or fingerprints, use a clean, soft microfiber cloth specifically designed for optical lenses, along with a small amount of lens cleaning fluid if necessary. Apply fluid to the cloth, not directly to the lens.
  • Never use abrasive materials, solvents, or harsh chemicals.
• Storage:
  • Always attach the front and rear lens caps when the lens is not in use.
  • Store the lens in a cool, dry place, away from direct sunlight and extreme temperatures.
  • If storing for extended periods, consider using a dehumidifying cabinet or silica gel packets to prevent mold growth.
• Handling:
  • Avoid dropping or subjecting the lens to strong impacts.
  • Do not force any moving parts.

Troubleshooting

Specifications

Figure 3: The Canon EF 100mm f/2.8 Macro USM Lens shown with a hand for scale, illustrating its physical dimensions and compact form factor.

Warranty Information

This Canon lens typically comes with a one-year limited warranty from the date of purchase, covering defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official Canon website for detailed terms and conditions, including specific coverage and service procedures. Keep your proof of purchase for warranty claims.

Note: Warranty terms may vary by region and retailer.

Support and Contact

For technical support, service, or additional information regarding your Canon EF 100mm f/2.8 Macro USM Lens, please contact Canon customer support or visit their official website.

• Official Canon Website: www.usa.canon.com
• Customer Service: Refer to the contact information provided on the Canon website for your specific region.

When contacting support, please have your lens model number (4657A006) and serial number ready.