Canon FL 135mm f/2.5 BL Lens
The Canon 135mm f/2.5 BL is a 135mm f/2.5 lens designed for Canon FL mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Canon FL 135mm f/2.5 BL Lens
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Lens Overview — Canon 135mm f/2.5 BL
Key Features — Canon 135mm f/2.5 BL
135mm Prime Focal Length: A dedicated telephoto perspective well-suited for portraits, candids, and subject isolation without the optical compromises of a zoom lens.
f/2.5 Maximum Aperture: A fast maximum aperture for a 135mm prime, allowing meaningful subject separation and usable performance in lower light conditions.
Full-Frame Coverage: Designed to cover the full 35mm film image circle, making it compatible with full-frame SLR bodies when used with an appropriate adapter.
Canon FL Mount: Legacy FL mount requires a Canon FL-to-EF or FL-to-mirrorless adapter for use on modern cameras, which are widely available from third-party manufacturers.
Manual Focus Only: All-manual focus operation typical of FL-era glass, requiring hands-on control that suits deliberate shooting styles and vintage lens enthusiasts.
58mm Filter Thread: A common filter diameter that makes it straightforward to source ND, polarizing, and UV filters for this lens.
Lens Specifications — Canon 135mm f/2.5 BL
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Landscape, Creative Effects |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 135mm |
| Maximum Aperture | f/2.5 |
| Camera System | SLR |
| Lens Mount | Canon FL |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 58mm |
Description — Canon 135mm f/2.5 BL
The Canon FL 135mm f/2.5 is a prime telephoto lens with a 135mm fixed focal length and a maximum aperture of f/2.5, built around the Canon FL mount for SLR camera systems. It is designed to cover a full-frame image circle, making it suitable for full-frame bodies when paired with an appropriate adapter. The lens is manual focus only with no image stabilization, staying true to its vintage FL-era origins.
A 58mm filter thread provides easy integration with standard filter accessories. Weighing 680g, it carries the substantial, well-built character associated with Canon's FL-era optical engineering. Whether you're a collector of vintage Canon glass or a photographer drawn to the tactile experience of manual focus shooting, this lens represents a tangible connection to a significant period in Canon's history.
Pros — Canon 135mm f/2.5 BL
- ✓Fast maximum aperture of f/2.5 for a 135mm prime, enabling subject separation and low-light flexibility
- ✓Full-frame coverage ensures compatibility with full-frame SLR bodies
- ✓58mm filter thread is a widely available size, making filter accessories easy to source
Cons — Canon 135mm f/2.5 BL
- ✗Canon FL mount is a legacy system, requiring an adapter for use on modern cameras
- ✗Manual focus only — no autofocus capability, which may slow down certain shooting scenarios
- ✗No image stabilization, which can be a challenge at 135mm when shooting handheld
Videos — Canon 135mm f/2.5 BL
Pros and Cons of Canon FD Lenses — Matt Rice









