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Customer Review
- Reviewed in Canada on January 24, 2015Got this lens as an upgrade to the Canon EF-S 55-250 IS II telephoto lens for my Canon T3 This is a significant upgrade over the previous lens. I shoot a fair bit of video and one of the main advantages of this lens is the very fast autofocus system (STM) which is essentially silent. The image stabilizer (IS) feature of this lens is also completely silent. This makes for shooting video very smooth and quiet. The autofocus speed of this is slower than a USM lens but is much better for video than a similar USM lens because of it's silent nature throughout the telephoto range. One feature I particularly enjoy is the lens' ability to focus track a subject smoothly. Very impressive for a budget telephoto lens often sold in camera kits.
Two other great practical things about this lens is that it allows full-time manual override while in autofocus mode. The focus is drive-by-wire electronic manual override with no physical connection to the focus system meaning that the camera must be powered on for this to work. This may be a problem depending on what you use your camera for but it wasn't a huge issue for me. The focus ring is set for precision over speed which is means more turning for really fine focus. This is also what I prefer. Secondly, the front element of the lens does not rotate with focusing. This means that lens hoods and filters do not rotate and can remain in their desired orientation while focusing.
As a final feature, this lens has one extra lens element over the previous version and I've noticed a slight improvement in the Bokeh (the quality of background blur) compared to the previous lens. The image quality remains excellent as in the previous version. There is, however, quite a bit of vignetting, especially on the telephoto end of the zoom. This was also present in the previous version of this lens however.
Overall, I purchased this lens for 1) silent and quick autofocus 2) full time manual over-ride 3) no rotation of the front element of the lens. I wish there was a direct link to the focus instead of drive-by-wire but despite this, the upgrade was worth it for me. I would definitely recommend.
