Canon EF 75-300mm f/4-5.6 III
The Canon 75-300mm f/4-5.6 III is a 75–300mm f/4 lens designed for Canon EF mount cameras. Used copies start from $94.04 on GearFocus, with buyer protection on every purchase.
Canon EF 75-300mm f/4-5.6 III
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Lens Overview — Canon 75-300mm f/4-5.6 III
Key Features — Canon 75-300mm f/4-5.6 III
75-300mm Zoom Range: Covers a broad telephoto range suitable for wildlife, sports, and compressed background portraiture from a single lens.
Canon EF Mount: Fully compatible with Canon's full-frame and APS-C EF-mount DSLRs, integrating with Canon's autofocus and metering systems.
Full-Frame Coverage: Image circle covers full-frame sensors with no vignetting, and delivers a longer effective reach on APS-C bodies.
Autofocus Support: Works with Canon DSLR AF systems for automatic subject acquisition without requiring manual focus adjustment.
480g Lightweight Build: Relatively light for a 300mm telephoto zoom, reducing fatigue during extended handheld shooting sessions.
f/4-5.6 Variable Aperture: Maximum aperture narrows from f/4 at 75mm to f/5.6 at 300mm, which is typical for this class of telephoto zoom.
Lens Specifications — Canon 75-300mm f/4-5.6 III
| Spec | Detail |
|---|---|
| Use Cases | Sports, Wildlife, Birding, Travel |
| Lens Type | Zoom |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 75–300mm |
| Maximum Aperture | f/4 |
| Camera System | DSLR |
| Lens Mount | Canon EF |
| Autofocus | Yes |
| Focus Type | Auto |
| Image Stabilization | None |
| Filter Thread | 58mm |
Description — Canon 75-300mm f/4-5.6 III
The Canon EF 75-300mm f/4-5.6 III is a telephoto zoom lens covering a focal length range of 75mm to 300mm, mounted on the Canon EF system and optimized for full-frame DSLR bodies. With a maximum aperture of f/5.6 at the long end, it provides a workable aperture for telephoto shooting in good lighting conditions. The lens weighs 480g, keeping things manageable for a zoom of this reach.
Autofocus is built in, enabling the camera's AF system to drive focus automatically. A 58mm filter thread allows for easy attachment of popular filter types. One consideration buyers should weigh is the absence of image stabilization — this lens ships with no IS system, so technique and shutter speed management matter more at the 300mm end of the range.
For Canon DSLR shooters looking for an EF-mount telephoto zoom to extend their reach, this lens covers the essential bases within its specifications.
Pros — Canon 75-300mm f/4-5.6 III
- ✓Wide telephoto zoom range from 75mm to 300mm (minFocalLength: 75, maxFocalLength: 300)
- ✓Full-frame compatible via Canon EF mount (lensFormat: Full Frame, mount.lens: Canon EF)
- ✓Relatively lightweight at 480g for the focal length range covered (weight: 480g)
Cons — Canon 75-300mm f/4-5.6 III
- ✗No image stabilization, which is a notable omission at longer focal lengths (imageStabilization: None)
- ✗Maximum aperture of f/5.6 at the long end limits performance in lower light (maximumAperture: 5.6)
- ✗Telephoto-only range starting at 75mm means a separate lens is needed for wider shots (minFocalLength: 75)
Reviews — Canon 75-300mm f/4-5.6 III
Videos — Canon 75-300mm f/4-5.6 III
Canon 75-300mm f/4-5.6 USM 'iii' lens review with samples (Full-frame & APS-C) — Christopher Frost