Canon EF 100mm f/2.8L Macro IS USM Lens User Manual

Quick Guide from the Manual

This manual provides essential instructions for operating the Canon EF 100mm f/2.8L Macro IS USM lens. Key features include an Image Stabilizer (IS) for steady shots, an Ultrasonic Motor (USM) for quiet autofocus, and 1:1 macro magnification capabilities. Always handle the lens with care, avoid looking at the sun through the lens, and protect it from condensation when moving between temperature extremes.

Nomenclature

The lens features several key controls:

• Focusing ring: Used for manual focus.
• Focus mode switch: Toggles between AF (Autofocus) and MF (Manual Focus).
• Focusing distance range selection switch: Limits the focus range to speed up autofocusing.
• Image stabilizer switch: Turns the IS function ON or OFF.
• Tripod mounting location: For attaching a tripod mount ring.

Mounting and Detaching

To mount the lens, align the lens mount index with the camera's mount index and rotate clockwise. When detaching, ensure the lens is placed with the rear end up to protect the electrical contacts. If contacts become soiled or scratched, clean them with a soft cloth to prevent operational errors.

Focusing

The lens supports both Autofocus (AF) and Manual Focus (MF). You can use the focus mode switch to select your preference. The focusing distance range switch allows you to limit the range (FULL, 0.3m-0.5m, or 0.5m-infinity) to improve autofocus speed. For infinity focus compensation, align the vertical line of the L mark with the distance indicator on the distance scale.

Image Stabilizer

The Image Stabilizer helps reduce camera shake. Set the switch to ON to activate. It is particularly effective for close-up shooting, low-light conditions, and when using a monopod. Note that the stabilizer consumes more power and should be turned OFF when using a tripod or during long exposures (Bulb setting).

Macro Photography Techniques

For close-up shots, the depth of field is very shallow. Use the following techniques to minimize blur:

• Hold the camera firmly, using a steady surface like a table or wall for support.
• Use AI Servo AF mode on your camera.
• Use a faster shutter speed than normal to compensate for magnification.

Accessories and Compatibility

• Hood: Use the ET-73 hood to block unwanted light and protect the lens. Align the attachment mark with the red dot on the lens and turn until it clicks.
• Tripod Mount: The D (B) tripod mount ring (sold separately) allows for rotation between vertical and horizontal positions.
• Filters: 67mm filters can be attached to the front thread. Do not use filters and a macro flash simultaneously.
• Extension Tubes: Compatible with EF12 II and EF25 II for increased magnification.
• Macro Flash: Compatible with Canon Macro Ring Lite MR-14EX or Macro Twin Lite MT-24EX using the Macro Lite Adapter 67.

Specifications

The lens features a focal length of 100mm, f/2.8 aperture, and a minimum focusing distance of 0.3m. It is constructed of 12 groups and 15 elements. The filter diameter is 67mm, and the weight is approximately 625g.