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General| Lens type | Telephoto lens |
|---|---|
| Component for | SLR |
| Image stabilizer | Yes |
| Lens mount interface | Canon EF |
| Maximum aperture number | 45 |
| Minimum aperture number | 4 |
| Closest focusing distance | 2 m |
| Number of diaphragm blades | 9 |
| Lens structure (elements/groups) | 33/24 |
| Magnification | 0.21 x |
| AF actuator | Ring USM |
| Compatibility | - |
| Product color | White |
Weight and Dimensions| Length | 366 mm |
|---|---|
| Weight | 3620 g |
| Diameter | 128 mm |
| Filter size | 52 mm |
Details the internal 1.4x extender and its focal distance adjustment.
Explains the IS effect and a specific mode for moving subjects.
Highlights fluorite and UD lens elements for superior definition.
Describes Subwavelength Structure Coating (SWC) for reducing flare and ghosting.
Mentions fluorine coating on lens surfaces for easier dirt removal.
Notes the USM for fast, quiet autofocus operation.
Explains manual focus availability after AF in ONE SHOT AF mode.
Describes the AF stop button for temporarily pausing autofocus.
Introduces power focus mode for smooth focus changes.
Details the focus preset for storing and recalling focus positions.
Mentions circular aperture for producing beautiful soft focus images.
Lists compatibility with EF1.4x III/EF2x III extenders.
Notes the attachment slot provided for wire-type security locks.
Highlights tight seal structure for excellent dustproof and drip-proof performance.
Mentions design for lighter weight using magnesium alloy parts.
Provides guidance on preventing condensation and avoiding high temperatures.
Warns against looking at the sun and damaging the lens/camera.
Details FCC and Canadian ICES compliance and operational restrictions.
Identifies the focusing ring and its related functions.
Locates the zoom ring and extender controls.
Points to image stabilizer and focus mode selector switches.
Highlights the lens mount, contacts, and strap mount.
Identifies distance scale, security slot, and tripod mount.
Explains how to attach the camera strap securely to the lens.
Details how to set the focus mode to AF, MF, or PF.
Explains how to set the focusing distance range to shorten autofocusing time.
Describes how to temporarily pause autofocus and its behavior with different camera modes.
Provides step-by-step instructions for setting a focus preset.
Explains how to use the playback ring to focus at the preset distance.
Details how to use the playback ring for smooth focus changes in PF mode.
Explains how to zoom using the zoom ring and the importance of finishing before focusing.
Guides on setting the IS switch and selecting between modes 1, 2, and 3.
Illustrates conditions where IS Modes 1, 2, and 3 are effective.
Covers IS limitations, power consumption, and compatibility with certain cameras.
Details the steps to slide the lock and move the lever to select focal distance.
Explains camera grouping and conditions for using the internal extender.
Lists specific situations where the internal extender switch should not be moved.
Explains how to compensate for infinity focus shifts due to temperature changes.
Guides on how to attach and remove the lens hood using the lock knob.
Describes the steps to reverse the hood and secure the lens cap with its fastener.
Provides instructions on how to properly place and secure the lens in its carrying case.
Details adjusting the tripod mount for positioning and cautions about replacement.
Explains the purpose of the security slot for wire-type locks.
Guides on how to install and remove the drop-in filter holder.
Presents specifications for focal length, aperture, and angle of view with extenders.
Provides notes on errors, exposure compensation, and AF behavior with extenders.
Shows a matrix detailing AF and IS compatibility for various cameras and extenders.
Lists specific camera models for compatibility chart references.
Details focusing distance and magnification when using extension tubes.
Lists key specifications like focal length, aperture, and lens construction.
Provides details on weight, dimensions, filter, hood, lens cap, and case.
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