Canon RF-S18-45mm F4.5-6.3 IS STM Lens
The Canon 18-45mm f/4.5-6.3 IS STM is a 18–45mm f/4.5 lens designed for Canon RF mount cameras. Used copies start from $76.16 on GearFocus, with buyer protection on every purchase.
Canon RF-S18-45mm F4.5-6.3 IS STM Lens
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Lens Overview — Canon 18-45mm f/4.5-6.3 IS STM
Key Features — Canon 18-45mm f/4.5-6.3 IS STM
18-45mm APS-C Zoom: Covers wide-angle through short telephoto in a single lens, making it practical for everyday, travel, and general-purpose shooting.
Native Canon RF-S Mount: Designed exclusively for Canon's RF-mount APS-C mirrorless system, ensuring full electronic compatibility without an adapter.
Optical Image Stabilization: Built-in IS helps compensate for camera shake during handheld shooting, particularly useful given the lens's narrower maximum aperture.
STM Autofocus Motor: Stepping motor autofocus delivers smooth, quiet focusing suited to both stills and video recording.
f/4.5-6.3 Variable Aperture: Maximum aperture shifts from f/4.5 at the wide end to f/6.3 at 45mm, a key factor to consider for low-light use.
130g Compact Build: One of the lightest RF-mount zoom lenses available, making it easy to carry on compact APS-C bodies like the EOS R50 or R100.
Lens Specifications — Canon 18-45mm f/4.5-6.3 IS STM
| Spec | Detail |
|---|---|
| Use Cases | Travel, Beginner-Friendly, Street, Portrait, Landscape |
| Lens Type | Zoom |
| Format | APS-C |
| Zoom/Prime | Zoom |
| Focal Length | 18–45mm |
| Maximum Aperture | f/4.5 |
| Camera System | Mirrorless |
| Lens Mount | Canon RF |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical |
| Filter Thread | 49mm |
Description — Canon 18-45mm f/4.5-6.3 IS STM
The Canon RF-S 18-45mm f/4.5-6.3 IS STM is a zoom lens built for Canon RF-mount APS-C mirrorless cameras, covering a focal length range of 18–45mm — from wide-angle to short telephoto. With a maximum aperture of f/4.5 at the wide end, it handles a range of everyday shooting scenarios. Optical image stabilization is included, helping to compensate for camera shake during handheld use, which is particularly valuable at this lens's variable aperture. Both autofocus and manual focus are available, giving users control over their focusing approach depending on the subject and situation.
The lens accepts 49mm filters, keeping accessory costs low, and its overall weight of just 130 grams makes it a genuinely portable option that pairs naturally with compact RF-mount APS-C bodies. For photographers entering or building out a Canon RF-mount APS-C kit, this lens offers a practical range in a small, easy-to-carry package.
Pros — Canon 18-45mm f/4.5-6.3 IS STM
- ✓Compact and lightweight at just 130g, ideal for travel and everyday carry
- ✓Native Canon RF mount ensures full compatibility with Canon RF-mount APS-C mirrorless cameras
- ✓Built-in optical image stabilization helps manage camera shake across the zoom range
Cons — Canon 18-45mm f/4.5-6.3 IS STM
- ✗Maximum aperture of f/4.5 at the wide end is relatively modest, limiting low-light capability
- ✗APS-C-only format means the lens cannot be used on full-frame RF-mount bodies at full image circle
- ✗Variable aperture means the lens stops down as you zoom, reducing light transmission at 45mm
Reviews — Canon 18-45mm f/4.5-6.3 IS STM
Videos — Canon 18-45mm f/4.5-6.3 IS STM
Canon RF-S 18-45mm Lens vs 18-150mm Lens - Which Kit Lens Is Better? — Jason Hermann