Canon EF 75-300mm f/4.0-5.6 III USM Lens

Product Summary


Priced at $235 range this is one of the two 75-300mm lens that Canon offers. The other being the EF 75-300mm f/4-5.6 III. This lens is designed for the wildlife photographer however the build quality betrays it. This lens does come with Ultra-Sonic Motor (USM) but it is Micro-motor type and not the better Ring-type that Canon uses for its L series lenses. This lens is suitable (though not the best option always) for wildlife and nature photography enthusiasts. To its advantage the lens is light weighing only 480 grams but the disadvantage is that the lens does not have image stabilization feature like EF 70-300mm f/4.0-5.6 IS USM Lens, which means hand-holding when fully zoomed out would pose a lot of problems, unless you use a tripod. Focusing speed is reasonable but not extraordinary.

Overall build quality is a shameless reflection of the price at which the lens retails. The external areas are almost entirely made of plastic. Canon’s L series lenses are known for their overall great quality and this is no L series lens.  If you are after for both image & build quality, you might consider EF 70-300mm f/4-5.6 L IS USM LensEF 70-300mm f/4.5-5.6 DO IS USM or even balanced EF 70-300mm f/4.0-5.6 IS USM Lens. However this lens is not suitable for any sort of rigorous use for which it is meant. The closest focusing distance of the lens is 1.5 meters or 4.9’.

Overall there are 13 lens elements arranged in 9 groups with the front group rotating during focusing and extending when zoomed in. the diaphragm is made up of 7 blades and it gives a maximum aperture of f/4. The external dimensions are 2.8″ x 4.8″ and it takes a filter of size 58mm

Sample Images by EF 75-300mm f/4.0-5.6 III on Flickr

Product Images

Canon EF 75-300mm f/4.0-5.6 III USM Specifications

Angle of viewH:27° – 6°50′, V:18°11′ – 4°35′, D:32°11′ – 8°15′
Construction (elements/groups)13/9
No. of diaphragm blades7
Min aperture32 – 45
Closest focusing distance (m)1.5
Max magnification (x)0.25 (at 300mm)
AF actuatorMicro USM
Filter Size (mm)58
Max. diameter x length (mm)71 x 122
Weight (g)480
Magnification – Extension Tube EF12 II0.31 – 0.04
Magnification – Extension Tube EF25 II0.39 – 0.09
Lens hoodET-60
Hard case
Soft caseLP1019


Purchase options

EF 75-300mm f/4.0-5.6 III available at Amazon | Adorama | B&H