|EF-S||Autofocus lens designed only for Canon APS-C digital SLR cameras.|
|IS||The lens is equipped with optical image stabilizer. The stabilizer allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without stabilizer you will have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.|
|STM||The lens is equipped with stepping motor to provide smooth, fast and virtually silent autofocus. Learn more|
|Position in the lineup|
|Canon EF-S 18-135mm F/3.5-5.6 IS USM||Mar 2016||⊗|
|Canon EF-S 18-135mm F/3.5-5.6 IS STM||Jun 2012||⊗|
|Canon EF-S 18-135mm F/3.5-5.6 IS||Oct 2009||⊗|
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|Diagonal angle of view:||74.1°-11.5° (Canon APS-C)
|Lens construction:||16 elements in 12 groups, including 1 ASPH, 1 UD|
|Closest focusing distance:||39 cm|
|Number of diaphragm blades:||7|
|Type of autofocus motor:||Stepping (Canon EF-S)
|Full-Time Manual Focus:||Yes|
|Stabilizer features:||Dynamic IS
|Stabilizer efficiency:||up to 4 stops|
|Maximum diameter x Length:||Ø77 x 96 mm|
|Materials:||Plastic barrel, metallic mount|
|Filter size:||67 mm|
The lens barrel is of moderate weight, made of plastic. The lens mount is metallic.
The lens features a zoom lock lever to keep the zoom ring fixed at the shortest focal length of 18 mm. This function is convenient for carrying a camera with the lens on a strap because it prevents the lens from extending.
The focusing ring is not physically coupled with the focusing mechanism and works electronically (focus-by-wire) - turning of the ring actuates an electric motor that moves the focusing group of the lens to the proper position to achieve sharp focus.
The lens features AF/MF focus mode switch.
|AF||Autofocus mode with Full-Time Manual Focus.|
|MF||Manual focus mode.|
Full-Time Manual Focus with lenses equipped with stepping or linear motor is performed in the following way - half-press the shutter button, wait until the camera has finished the autofocusing and then focus manually without releasing the shutter button using the manual focusing ring.
The lens uses front filters with standard size of 67 mm which are easy to find. They are also inexpensive.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
Low dispersion elements (AD, ED, LD, HLD, SD, UD etc) and fluorite elements minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.
The lens features optical image stabilizer, which, according to the manufacturer, compensates up to 4 stops of shutter speed. Theoretically it allows to capture sharp images of static subjects at shutter speeds down to 1/8 second at focal length of 135 mm(*).
* without the need to increase ISO sensitivity and/or use a tripod, at the same lighting conditions and at the same aperture
The image stabilizer does not have any specialized mode of operation, but is capable of automatic detection of panning and then corrects camera shake only in one direction.
The image stabilizer has Dynamic IS technology which especially effective when shooting while walking because it compensates strong camera shake. Dynamic IS activates automatically when the camera is set to movie shooting.
The focusing ring does not rotate during autofocus unlike the older 18-135 model.
|Camera||Canon EOS 50D||Canon EOS 50D|
|Sensor size||22.3×14.9 mm||22.3×14.9 mm|
|Distortion at 18 mm||-3.99 %||-4.22 %|
|Distortion at 135 mm||+1.08 %||+1.42 %|
|Vignetting at 18 mm F/3.5||-1.55 EV||-1.58 EV|
|Vignetting at 135 mm F/5.6||-0.91 EV||-1.15 EV|
|Efficiency of Image Stabilizer||up to 3 stops|
|User Manual. English, Adobe PDF, 942 KB|
|User Manual. Русский, Adobe PDF, 450 KB|
|Prime lenses for Canon EOS DSLR cameras|
Alternatives (AF, 15-152 mm)
|Canon EF-S 18-135mm F/3.5-5.6 IS||2009||⊗|
|Canon EF-S 18-135mm F/3.5-5.6 IS USM||2016||⊗|
|Sigma 18-125mm F/3.5-5.6 DC||2004||⊗|
|Sigma 18-125mm F/3.8-5.6 DC OS HSM||2008||⊗|
|Tokina AT-X 635 AF 16.5-135mm F/3.5-5.6 DX||2009||⊗|