Canon 18-135mm f/3.5-5.6 IS USM
The Canon 18-135mm f/3.5-5.6 IS USM is a 18–135mm f/3.5 lens designed for Canon EF-S mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Canon 18-135mm f/3.5-5.6 IS USM
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Lens Overview — Canon 18-135mm f/3.5-5.6 IS USM
Key Features — Canon 18-135mm f/3.5-5.6 IS USM
18-135mm Zoom Range: Covers wide-angle to mid-telephoto in a single lens, making it practical for travel, portraits, and everyday shooting without swapping optics.
f/3.5-5.6 Maximum Aperture: Opens to f/3.5 at the wide end, providing reasonable light-gathering capability for a standard walk-around zoom.
Optical Image Stabilization: Built-in IS helps compensate for camera shake during handheld shooting, particularly useful at the longer end of the zoom range.
Ring-Type USM Autofocus: Ultrasonic motor delivers fast, quiet autofocus with full-time manual focus override without switching out of AF mode.
APS-C Format Design: Optimized for Canon APS-C DSLR sensors, giving an effective focal length range of approximately 29–216mm in full-frame equivalence.
Canon EF-S Mount: Native Canon EF-S mount fits APS-C DSLR bodies including the Rebel, 90D, and 7D series; not compatible with full-frame EF bodies.
Lens Specifications — Canon 18-135mm f/3.5-5.6 IS USM
| Spec | Detail |
|---|---|
| Use Cases | Travel, Portrait, Landscape, Street, Event |
| Lens Type | Zoom |
| Format | APS-C |
| Zoom/Prime | Zoom |
| Focal Length | 18–135mm |
| Maximum Aperture | f/3.5 |
| Camera System | DSLR |
| Lens Mount | Canon EF-S |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical |
| Filter Thread | 67mm |
Description — Canon 18-135mm f/3.5-5.6 IS USM
The Canon 18-135mm f/3.5-5.6 IS USM is a standard zoom lens built for APS-C format DSLR cameras using the Canon EF mount. Its 18-135mm focal length range spans from wide-angle to mid-telephoto, making it a practical single-lens solution for a wide variety of shooting situations. The lens features a maximum aperture of f/3.5 at the wide end and includes optical image stabilization to assist with handheld shooting across the zoom range.
Both autofocus and manual focus modes are supported, giving shooters control over how the lens acquires focus. The 67mm filter thread provides compatibility with common screw-in filter accessories. At 515g, this lens offers a reasonable balance of reach and portability for everyday use on a Canon APS-C DSLR body.
Pros — Canon 18-135mm f/3.5-5.6 IS USM
- ✓Broad 18-135mm focal length range covers wide to mid-telephoto in one lens
- ✓Built-in optical image stabilization helps reduce camera shake during handheld shooting
- ✓Supports both autofocus and manual focus for shooting flexibility
Cons — Canon 18-135mm f/3.5-5.6 IS USM
- ✗Maximum aperture of f/3.5 at the wide end is relatively modest for low-light shooting
- ✗APS-C-only format means the lens cannot be used on full-frame Canon DSLR bodies
- ✗Variable maximum aperture means light transmission decreases as you zoom toward 135mm
Reviews — Canon 18-135mm f/3.5-5.6 IS USM
Frequently Asked Questions — Canon 18-135mm f/3.5-5.6 IS USM
What camera mount does this lens use?+
This lens uses the Canon EF mount. It is designed for APS-C format Canon DSLR cameras. It is not compatible with full-frame Canon DSLR bodies or mirrorless systems without an adapter.
Does this lens have image stabilization?+
Yes, the lens includes optical image stabilization, which helps compensate for camera shake during handheld shooting. This can be particularly useful at longer focal lengths within the 18-135mm zoom range.
Can I use standard filters with this lens?+
Yes, the lens has a 67mm filter thread, making it compatible with a wide range of circular screw-in filters such as polarizers and neutral density filters.
Does the lens support autofocus?+
Yes, autofocus is supported, and the lens also allows manual focus operation. This dual-mode capability gives photographers the option to switch between AF and MF depending on the shooting scenario.
How heavy is this lens?+
The lens weighs 515g, which is a practical weight for an 18-135mm zoom. It is manageable for extended handheld shooting sessions on an APS-C DSLR body.