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

are some minor differences, notably to Sharpness, but they aren’t significant and unless you really want or need the new Stepper Motor the old Canon EF-S 18-135mm f3.5-f5.6 IS version is just as good, still available aZnd a little bit cheaper to boot.

The overall DxOMark Score of 12 for the Canon EF-S 18-135mm f3.5-f5.6 IS STM is, like its predecessor, an excellent Super Zoom contender and offers good optical quality for a wide range of subjects. With a DxOMark Lens Metric Score of 7 P-Mpix for Sharpness, when tested on a Canon EOS 7D, the Canon EF-S 18-135mm f/3.5 – f/5.6 IS STM is in fact the sharpest Super Zoom we’ve tested. Compared to much of the competition its sharpness is excellent, for example although the Sigma 18-250mm F3.5-6.3 DC MACRO OS HSM is a good example of a Super Zoom it only manages 5.6P-Mpix for sharpness, a significant difference. Make sure you look back for a full review on the Sigma 18-250mm F3.5-6.3 DC MACRO OS HSM Canon soon.

Despite being the sharpest lens in the super zoom category this type of lens are not the best optically. The wide focal range available in a relatively small package makes them convenient for everyday use but maintaining good sharpness across the focal range is a challenge. Between 18 – 70mm using wide apertures like f/5.6 results are respectable and the Canon EF-S 18-135mm f3.5-f5.6 IS STM is at its sharpest at 18mm f/5.6. Results at the longer end of the focal range aren’t too bad either when using apertures between f/5.6 and f/11, but once you close down the aperture to f/11 and beyond sharpness suffers.

On a brighter note lens vignetting, the effect of shading towards the edges of the frame, is remarkably well controlled for a lens of this type and across the board the results are excellent. Shooting at apertures of f/5.6 and smaller the effect has been eliminated and although it’s at its most pronounced at 18mm f/3.5 this is to be expected at such settings. There’s some vignetting at 135mm f/5.6 too but again it’s minor and with the aperture closed down to f/8 the problem is eradicated at all focal lengths."

 

Selected Items
Click to close the selection preview
Compare List
Teleconverters: Click to see the selected items
Click to Compare the selected items
Flashes: Click to see the selected items
Click to Compare the selected items
Lenses: Click to see the selected items
Click to Compare the selected items
Cameras: Click to see the selected items
Click to Compare the selected items