Canon EF-S 18-135mm f/3.5-5.6 IS STM lens review at Camera Stuff Review

Ivo Freriks tests the lens with a Canon T4i/650D Dslr body, and discovers that these two make an excellent combo, especially when video shooting comes to play:

"Optically, the Canon 18-135mm zoom lens STM is slightly better, but not much different than its predecessor. The main differences of this review compared to the Canon 18-135 mm review that we have previously published, is the improved performance for chromatic aberration and vignetting. And these improvements are caused by the in-camera lens corrections made by the Canon 650D. . . . read more

Canon EF-S 18-135mm f3.5-f5.6 IS STM review (tested with a Canon 7D) and score by DXO Mark: An excellent Super Zoom but no significant improvement.

"With a DxOMark Score of 12 the Canon EF-S 18-135mm f3.5-f5.6 IS STM achieves an excellent rating for an all-in-one Super Zoom lens. In terms of Sharpness the latest version just edges out its predecessor the Canon EF-S 18-135mm f/3.5 –f/5.6 IS to make it the sharpest Super Zoom on the DxOMark tested database.

Updated from a previous version to include Canon’s new Stepper Motor for silent autofocus during video capture the DxOMark Scores indicate there’s no discernable difference in optical performance between the new and old versions. There

. . . read more

Canon EF-S 18-135mm f/3.5-5.6 IS STM Lens Review by Gary Wolstenholme at Ephotozine: Descent but not exceptional, and very expensive when not sold as part of a kit.

The old Canon 18-135mm IS USM lens reincarnated with a stepper motor, more suitable for video recording where smoothness and silence during AF operation is a prerequisite:

"At maximum aperture and 18mm sharpness is already excellent in the centre of the frame, with the clarity towards the edges of the frame being not too far behind. Peak sharpness is achieved between f/4 and f/5.6 for this focal length, and sharpness is excellent across the frame at these apertures. . . . read more

Canon EF-S 18-135mm f/3.5-5.6 IS STM Lens Review at The-Digital-Picture.

"The 18-135 STM features a simple, smoothly-shaped exterior that is practically all zoom and focus rings. The zoom ring located toward the rear of the lens is my preference for positioning. Again featured is a quality plastic barrel with an attractive finish and the usual ribbed-rubber-covered rings.


Noticeably improved from the 18-135 IS is that there is practically no play in the 18-135 STM's extended lens barrel - and essentially no play in the focus and zoom rings. The rings are very smooth with a nice amount of dampening. A zoom lock . . . read more

Canon unveils the EF-S 18-135mm f/3.5-5.6 IS STM and EF 40mm f/2.8 STM lenses

'STM' is the keyword here, and it stands for 'Step Technology Motor'. These are the first such lenses in Canon's line-up, and are optimized for video shooting. Their performance, speed wise is a step (no pun intended) below those equipped with USM. 

Canon Press Release. . . . read more

Overview

Description By Canon:

An all-purpose 18-135mm zoom lens with STM technology. STM provides smooth quiet auto focusing for movies, and Dynamic Image Stabilizer reduces vibrations in video footage.

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