Friday, May 20, 2011

The User's Review: Canon Zoom Lens EF 75-300mm 1:4-5.6 III USM

Fist of all, I thank Susan P, Atkinson, NH, sending me her lenses for my review.

This lens carries 'Canon' brand name, U (ultrasonic motor) sign and a metal lens mount. All these make it a popular telephoto lens for Canon AF camera users. In the USA used market, it's easy to sell it at a price more than USD 100, twice as much as a zoom with the same configuration from a lens specialist manufacture.

The lens extends while its zoom ring turning from 75 to 300mm. Turning the focus ring also changes the lens' length. No distance and DOF scales are marked on the barrels. You will not find the magnification ratio neither. The lens, made in Malaysia,  accepts 58mm filter, and has a 1.5m (4.9ft) macro sign.

The lens is long, ~5 cm  longer than my Sigma 75-300mm. The build quality of this Canon lens is average.I feel that the internal barrel and focus ring are loose in this lens, although Susan says very little use (580978wuD). On used ones, I saw broken rings, lost resistance in zoom ring (stand up the lens on its rear end with a rear cap, set the zoom to 300, open you hands and see if the internal barrel falls in or not by itself; If does, you have to hold the zoom ring when shooting something such as a bird up on a tree). Better to test-use one before buying it.




1 comment:

  1. Thanks for sharing your review of the Canon EF 75–300mm zoom lens — it was great to read your honest thoughts on how this lens performs in various shooting situations. While this isn’t a dedicated macro lens, your discussion about its close‑focusing limitations and how it handles detail and sharpness helps readers understand why true macro lenses are designed differently. For anyone researching the Best macro lens for canon camera, your experience highlights important points like working distance, magnification capability, and optical performance — all of which are key features in good macro optics. Your hands‑on examples and real‑world impressions make the review practical and relatable, especially for photographers considering their first macro lens or looking to understand the difference between standard zooms and specialized macro glass. Thanks for sharing such a thoughtful and helpful review.

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