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 $95.18 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
Frequently Asked Questions — Canon 75-300mm f/4-5.6 III
What camera mount does this lens use?+
This lens uses the Canon EF mount, making it compatible with Canon EF-mount DSLR cameras. It is designed for full-frame camera bodies within the Canon DSLR system.
Does this lens have image stabilization?+
No, this lens does not include image stabilization. Photographers shooting handheld at longer focal lengths should keep this in mind and compensate with shutter speed or support.
What filter size does this lens accept?+
The lens accepts 58mm filters. This is a common thread size, so compatible polarizers, ND filters, and UV filters are widely available.
Does this lens support autofocus?+
Yes, autofocus is supported. The lens is designed to work with the autofocus systems of Canon DSLR cameras using the EF mount.
How heavy is this lens?+
The lens weighs 480g, which is relatively manageable for a 75-300mm telephoto zoom. This lighter weight can be an advantage during longer handheld shooting sessions.
Is this lens suitable for full-frame cameras?+
Yes, the lens is designed for full-frame Canon DSLR cameras and covers the full-frame image circle across its entire 75-300mm zoom range.