Overview

Designed to satisfy the discriminating needs of sports and wildlife photographers, the Canon EF 200-400mm f/4L IS USM Extender 1.4X is a high-performance super telephoto zoom lens with an optically matched built-in 1.4x extender for maximum versatility.

Features

Panel Features:

MTF Charts

Modulation Transfer Function or "MTF" is a measurement of the optical performance potential of a lens.

Focus Preset

  • By pressing any focusing distance, you can instantly focus at that point even while you are shooting a different subject. This function operates in any of the AF, PF and MF modes

1.) Set the focus preset switch to ON

2.) Press the shutter button halfway to focus the distance you want to preset

3.) Press the focus preset button

Power Focus (PF) Mode

  • Using the playback ring enables smooth focus change. This is a useful features for changing focus when shooting movies
1.) With the focus preset switch set to OFF, set the focus mode switch to PF.
2.) Rotate the playback ring to change the focus

When the playback ring is rotated in a certain direction, focus changes in the same direction as when the  focusing ring is rotated. You can make a 2-step change in focus shift speed depending on the angle that the playback ring is rotated to.

Sample Image:

 

Image Stabilizer

You can use the image stabilizer in AF,PF or MF mode. Also, the image stabilizer can be used regardless of the internal extender setting (either 1x or 1.4x)

1.) Set the STABILIZER switch to ON.

2.) Select the stabilizer mode

  • MODE 1: corrects vibrations in all directions. It is mainly effective for shooting still subjects
  • MODE 2: corrects vertical camera shake during following shots in a horizontal direction and corrects horizontal camera shake during following shots in a vertical direction
  • MODE 3: corrects vibration only during exposure. During panning shots, corrects vibration during exposure only in one direction in the same as MODE 2
3.) First press the shutter button down halfway then press down all the way to take the picture



Tips on Using the Image Stabilizer

The image stabilizer for this lens is effective for hand-held shots in the following conditions


  • In semi-darkened areas such as indoors or outdoors at night
  • In locations where flash photography is prohibited such as art museums and theater stages
  • In situation where your footing is uncertain
  • In situations where fast shutter settings cannot be used
  • When panning subjects in motion

Internal Extender Switch

The extender switch lever allows you to set the focal distance of the lens to 1.4x

 

Fitting the Lens Cap

1.) Reverse the lens hood, slip it over the lens and tighten the lock knob to fix it in place

2.) Lift the hook and loop fastener and fit the cap so that the lock knob rides up the slot in the cap

3.) With the lock knob at the opening in the cap, close the fastener to fix the cap in place as shown

 

Case

Put the lens away as follows:

1.) Reverse the lens hood, slip it over the lens, and attach the lens cap

2.) Position the tripod mount towards you as shown and place it in the case

3.) Fasten the lens securely with the strap

4.) Close the lid, and then push the lever while holding the lid from above to lock


What's in the Box?

How to Set-up the Lens:

Specifications:

Focal Length & Maximum Aperture

Lens Construction

Diagonal Angle of View

Focus Adjustment     

Closest Focusing Distance 

Filter Size

Max. Diameter x Length, Weight