Canon EF-S 55-250mm f/4-5.6 IS Lens Review
The Canon EF-S 55-250mm f/4-5.6 IS Lens is a small, light and economical telephoto zoom with a long focal length range - one that matches up very well to many general purpose zoom lenses. As it is an "EF-S" lens, the Canon EF-S 55-250mm f/4-5.6 IS Lens can only be mounted on Canon APS-C/1.6x FOVCF bodies. This is the first EF-S lens longer than 85mm and the first released since the Canon EF-S 18-55mm IS Kit Lens - a lens that the EF-S 55-250mm complements especially well.
Somewhat unusual is that this lens was not announced in the USA until 5 months after being announced to the rest of the world. As a result, I gave up waiting and purchased my EF-S 55-250 in Canada.
Like the EF-S 18-55 IS, the Canon EF-S 55-250mm f/4-5.6 IS Lens' build quality is on the low end. A plastic lens mount gives a quick indicator of where this lens is positioned in the Canon line. The focus ring is not the smoothest available. This is not, however, the worst-built lens I've used. The zoom ring is reasonably smooth (but stiff) and there is only a minor amount of play in the rings and barrel.
Just the basics. You get a nicely sized zoom ring and a small manual focus ring. There is no focus limiting switch, no zoom lock, no distance window, not even a date code.
Micro Motor AF (autofocus) delivers relatively slow AF but focus accuracy is not a problem. Of course, being a narrow aperture lens (relatively deep depth of field) helps in this regard. FTM (Full Time Manual) focusing is not available. Actually, the manual indicates that you should avoid touching the focus ring during AF as it physically turns. I expect that you could damage the motor or gears by restricting this movement. This lens is not parfocal (requires refocusing after a focal length change).
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