Canon EF 400mm f/4 DO IS USM Telephoto Lens

code: ef400-f4.0-do-is-usm

$8,828.66
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Canon EF 400mm f/4 DO Is UsM super telephoto lens

The EF 400mm f/4 DO IS USM is the worlds first super telephoto lens incorporating "Multi-Layer Diffractive Optical (DO) Element", for camera lenses, and is considered a major breakthrough. The outstanding feature, being its superb ability to correct chromatic aberrations. By incorporating this optical element in the optical design the EF 400mm f/4 IS USM is much smaller and lighter than a comparable lens having conventional optical elements. The Multi-Layer Diffractive Optical Element developed by Canon is a milestone optical element possessing the characteristics of both fluorite and aspherical elements, which has led to the production of high-performance camera lenses.

Angle of view (horzntl, vertl, diagnl)	5 degrees 10, 3 degrees 30, 6 degrees 10
Lens construction (elements/groups)	17/13
No. of diaphragm blades	8
Minimum aperture	32
Closest focusing distance (m)	3.5
Maximum magnification (x)	0.12
AF actuator	USM (1)
Filter diameter (mm)	52 Drop-in
Max. diameter x length (mm)	128 x 232.7
Weight (g)	1,940
Magnification - Extension Tube EF12 II	0.16 - 0.03
Magnification - Extension Tube EF25 II	0.20 -0.07
Lens hood	ET-120
Hard Case	Lens Case 400
G.F.Holder III (hood III*)	NC
G.F.Holder IV (hood IV*)NC

AF actuator	(1) Mechanical full-time manual focusing built-in.

	*Maximum number of Hood III/IV attachable. In case of zoom lenses, the maximum number applies to the short focal length

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