Canon FD 300mm f/2.8 L Lens
The Canon 300mm f/2.8 L is a 300mm f/2.8 lens designed for Canon FD mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Canon FD 300mm f/2.8 L Lens
Get notified when one lists.
We'll text or email you the moment a Canon FD 300mm f/2.8 L Lens is listed on GearFocus.
Have a Canon 300mm f/2.8 L sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Lens Overview — Canon 300mm f/2.8 L
Key Features — Canon 300mm f/2.8 L
300mm f/2.8 Prime: A fixed 300mm focal length with a fast f/2.8 maximum aperture delivers strong light-gathering at long range, useful for sports, wildlife, and press photography.
Canon FD L-Series Optics: Part of Canon's professional L-series lineup, indicating high-grade optical construction with premium glass elements for improved sharpness and contrast.
Full-Frame Coverage: Projects an image circle covering the full 35mm frame, compatible with all full-frame Canon FD SLR bodies without vignetting.
Manual Focus Only: Fully manual focus operation with no autofocus mechanism, requiring hands-on focusing technique typical of professional telephoto lenses of its era.
Canon FD Mount: Designed for Canon's FD-mount SLR system and widely adaptable to modern mirrorless cameras via third-party FD adapters.
48mm Drop-In Filter: Uses a 48mm rear drop-in filter system rather than a front-mounted thread, which is the practical solution for large telephoto optics of this size.
Lens Specifications — Canon 300mm f/2.8 L
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Birding |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 300mm |
| Maximum Aperture | f/2.8 |
| Camera System | SLR |
| Lens Mount | Canon FD |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 48mm |
Description — Canon 300mm f/2.8 L
The Canon FD 300mm f/2.8 L is a prime telephoto lens designed exclusively for the Canon FD mount and compatible SLR camera bodies. Offering a fixed 300mm focal length and a maximum aperture of f/2.8, it delivers a wide aperture at a long working distance — a combination that demands substantial optical engineering, reflected in its 2,550g body weight. The lens provides full-frame coverage, making it appropriate for full-frame SLR film bodies in the Canon FD ecosystem.
Focus is entirely manual, with no autofocus system present, and there is no image stabilization. The 48mm filter thread accommodates standard circular filters of that diameter. For photographers committed to the Canon FD mount — whether shooting film or using an FD-to-mirrorless adapter — this lens offers a dedicated long-telephoto prime with a fast f/2.8 maximum aperture as its defining characteristic.
Pros — Canon 300mm f/2.8 L
- ✓Fast f/2.8 maximum aperture at 300mm focal length provides strong light-gathering at a long reach
- ✓Prime lens design at exactly 300mm — no zoom compromise, dedicated single focal length
- ✓Full-frame coverage suits full-frame SLR bodies using the Canon FD mount
Cons — Canon 300mm f/2.8 L
- ✗Manual focus only — no autofocus system, which demands greater shooter skill for moving subjects
- ✗At 2,550g, this lens is very heavy and will require robust support in most shooting scenarios
- ✗No image stabilization, so managing camera shake at 300mm is entirely on the photographer
Videos — Canon 300mm f/2.8 L
Pros and Cons of Canon FD Lenses — Matt Rice









