EF70-300mm f/4.5-5.6 DO IS USM Specifications

Article ID: ART159046 | Date published: 06/09/2015 | Date last updated: 08/18/2015


EF70-300mm f/4.5-5.6 DO IS USM Specifications


EF70-300mm f/4.5-5.6 DO IS USM

Marketed June 2004
Lens Construction (group) 12
Lens Construction (element) 18
No. of Diaphragm Blades 6
Minimum Aperture 32-38 (1/3-stop increments is F32-40)
Closest Focusing Distance (m) 1.4
Maximum Magnification (x)
Filter Diameter (mm) 58
Maximum Diameter x Length (mm) 82.4 x 99.9
Weight (g) 720

The EF70-300mm f/4.5-5.6 DO IS USM telephoto zoom lens follows the EF400mm f/4 DO IS USM released in 2001 as the second model in Canon's EF lens lineup to incorporate a DO (Diffractive Optical element) lens.

Equipped with a three-layer DO lens specially designed for use in zoom-lens optics, the new lens possesses an exceeding ability to correct chromatic and spherical aberrations and render high-quality images. The lens element also achieves major reductions in size, realizing savings of 28% in overall length compared to comparable lenses incorporating conventional refractive optical elements. Moreover, the size and weight advantage comes at no cost to image quality, with the EF70-300mm f/4.5-5.6 DO IS USM delivering image quality on par with Canon's L-series lenses.

High performance features include image stabilization equivalent to shooting at approximately three shutter speeds faster, a circular diaphragm for improved background blur, and a zoom-ring locking mechanism that locks the lens in the fully retracted position to prevent unintended extension and damage when hanging from the user's neck.



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