Product Overview
This Canon EF 400mm F/4 DO IS USM Lens is a supert telephoto prime lens designed for Canon EOS 35mm SLR cameras but can also be used on Canon EOS DSLR cameras.
This is the first 400mm super telephoto lens for photography with the new multi-layered diffractive optical elements, or DO lens elements. It delivers unrivaled imaging performance while keeping size and weight down to the manageable levels. By combining DO lens elements with normal refraction elements, colour aberration is corrected to levels even higher than is possible with flourite elements. This lens also has the fastest autofocusing in the world*1. Equipped with an Image Stabilizing mechanism and a thoroughgoing dust-proof and drip-proof*2 construction, it can be used in even the harshest weather conditions. It also comes with an AF Stop function for outstanding operability and mobility. The green line on the lens barrel is a symbol of the innovative technologies used to design and produce Canon lenses, and is shared by the Canon FL_F 300mm f/5.6 which appeared in 1969, the first SLR lens in the world to use the flourite lens elements.
Specifications:
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Focal Length: |
400mm |
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Aperture range: |
f/4 - f/32 |
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Number of elements/groups: |
17 / 13 |
|
|
1 FL, 1 DO |
|
|
Internal Focusing (IF) |
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Diagonal Angle of View: |
6.2° |
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Diaphragm Type: |
Automatic |
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Aperture Control: |
None, the aperture is controlled by the camera |
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Number of Blades: |
8 (eight) |
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Closest Focusing Distance: |
3.5m |
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Maximum Magnification: |
1:8.33 at the closest focusing distance |
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Focusing Modes: |
Autofocus, manual focus |
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Autofocus Motor: |
Ring-type Ultrasonic Motor |
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Manual Focus Control: |
Focusing ring |
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Focus Mode Selector: |
AF – MF |
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Full-Time Manual Focus (FTM): |
Yes |
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Focusing Distance range Limiter: |
3.5-;8- |
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Built-in IS: |
Yes |
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IS Features: |
Mode 1, Mode 2 |
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IS Efficiency: |
up to 2 stops |
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Filters: |
Removable front filters are not accepted |
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Additional Features: |
Drop-in filter holder (52mm) |
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Weather Sealing: |
Dust-proof and water-resistant barrel |
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Lens Hood: |
ET-120 – Clamp-on around |
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Maximum Diameter x Length: |
128 x 233 mm |
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Weight: |
1940g |
In very good condition, with hood, cap pouch, and case.
