Product Guide
Super Telephoto Lens
• Compact, lightweight super telephoto lens that is ideal for sports and
wildlife photography.
• Newly-developed gapless dual-layer diffractive optical elements
deliver improved image quality with reduced are.
• Large diameter ground aspherical lens and UD lens for even greater
optical performance.
EF 400mm f/4 DO IS II USM
• The rst standard zoom EF lens for full frame sensor cameras to include
a lead screw-type stepping motor (STM).
• The focusing mechanism employs an inner focus lens and a stepping
motor to support the Canon EOS Movie Servo AF function* and provides
smooth and quiet continuous AF during video recording, as well as
when shooting photos.
• Optical Image Stabilizer provides up to four shutter speed stops
of correction**.
• New 7-group zoom optics allows for a conveniently compact design and
outstanding optical performance.
Standard Zoom Lens
EF 24–105mm f/3.5–5.6 IS STM
• Wide-angle lens for Canon APS-C cameras (equivalent to 38mm on a
full-frame camera) offers an ultra-slim and lightweight design.
• Slimmest and lightest lens of the EF-S series (approx. lens width is
0.9 in, or slightly wider than a U.S. nickel).
• A stepping motor (STM) supports the Canon EOS Movie Servo AF
function to provide smooth and quiet continuous AF during video
recording, as well as when shooting photos.
Wide-Angle Lens
EF-S 24mm f/2.8 STM
Diractive Optics (DO)
Canon diractive optics technology make it possible to have high-performance lenses that are much
smaller and lighter than traditional lenses without it. The new super telephoto EF 400mm f/4 DO IS II
USM lens incorporates newly developed gapless dual-layered diractive optical (DO) elements that help
improve optical performance while maintaining a compact, lightweight size.
Stepping Motor (STM)
Canon EF lenses with stepping motor (STM) technology focus using a geared ring or a lead screw rotary
drive system for amazingly smooth and quiet AF. This can be beneficial during continuous AF shooting
when capturing HD video with Movie Servo AF.
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* Cameras compatible with Movie Servo AF, as of August 2014: EOS 7D Mark II, EOS 70D, EOS Rebel T5i, EOS Rebel T4i, EOS Rebel SL1,
and EOS M (with Mount Adapter EF-EOS M). ** According to CIPA (Camera & Imaging Products Association) standards.
EF 400mm f/4 DO IS II USM • f/4.5 • 1/400 sec. • ISO 320
UD Lens
USM (Ultrasonic Motor)
Aspherical Lens
STM (Stepping Motor)
Diffractive Optics
Circular Aperture
Optical Image Stabilizer
Full-Time Manual Focusing Subwavelength Coating Fluorine Anti-Smear Coating
Inner and Rear Focusing
Focus Preset
AF Stop Feature Dust- and Water-Resistant Construction
Tech Icons
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