Canon EF100 Instruction page 2

Thank you for purchasing a Canon product.
The Canon EF100mm f/2.8 MACRO USM is a
macro lens that can be used for normal
photography as well as macro photography
up to 1x magnification. It is dedicated to
Canon EOS cameras.
• "USM" stands for Ultrasonic Motor.
Features
1. The three-group floating system results in
excellent delineation at all focusing distances
from life-size to infinity.
2. Ultrasonic motor (USM) for quick and quiet
autofocusing.
3. A Canon macro flash makes it easy to take
close-up pictures with a flash. The inner
focusing mechanism enables AF photography
while the macro flash is attached.
Conventions used in this instruction
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
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