Canon EF 800mm f/5.6L IS USM Lens
The Canon EF 800mm f/5.6L IS USM is a 800mm f/5.6 lens designed for Canon EF mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Canon EF 800mm f/5.6L IS USM Lens
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Lens Overview — Canon EF 800mm f/5.6L IS USM
Key Features — Canon EF 800mm f/5.6L IS USM
800mm Prime Focal Length: A fixed 800mm focal length delivers maximum optical commitment and consistency for subjects at extreme distances such as wildlife, sports, and aviation.
f/5.6 Maximum Aperture: A relatively fast maximum aperture for this focal length allows for usable shutter speeds in lower light and helps separate subjects from backgrounds.
Optical Image Stabilization: Built-in IS helps counteract camera shake at this demanding focal length, making handheld or monopod shooting more viable.
Ring-Type USM Autofocus: Canon's ring-type Ultrasonic Motor delivers fast, near-silent autofocus tracking suited to fast-moving subjects at long range.
Canon L-Series Optics: L-series construction includes fluorite and Super UD lens elements to minimize chromatic aberration and maintain edge-to-edge sharpness at 800mm.
Drop-In 52mm Filter System: Uses a rear drop-in filter slot, allowing photographers to mount polarizing or ND filters without the cost or impracticality of front filters at this lens diameter.
Lens Specifications — Canon EF 800mm f/5.6L IS USM
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Birding, Sports, Astrophotography |
| Lens Type | Super Telephoto |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 800mm |
| Maximum Aperture | f/5.6 |
| Camera System | DSLR |
| Lens Mount | Canon EF |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical (OIS) |
| Filter Thread | 52mm |
Description — Canon EF 800mm f/5.6L IS USM
The Canon EF 800mm f/5.6L IS USM is a super telephoto prime lens designed for full-frame Canon DSLR cameras. Operating at a fixed 800mm focal length with a maximum aperture of f/5.6, it targets photographers who need serious reach — from wildlife in remote environments to fast-moving sports subjects far from the action. The Canon EF mount ensures broad compatibility across Canon's DSLR lineup. Optical image stabilization is included to help manage the physical demands of shooting at 800mm.
The lens accommodates 52mm drop-in filters, a practical solution for color correction or neutral density use without requiring enormous front-mounted glass. At 4.5 kg, this lens is a commitment — proper support equipment is essential for effective use. Both autofocus and manual focus are supported, giving photographers control over focus behavior regardless of the scenario.
This is a specialized tool built for a specific purpose, and within that purpose, its specifications reflect a serious professional super telephoto prime.
Pros — Canon EF 800mm f/5.6L IS USM
- ✓Fixed 800mm focal length delivers dedicated super telephoto reach for distant subjects
- ✓Maximum aperture of f/5.6 provides usable light gathering at extreme focal lengths
- ✓Optical image stabilization helps compensate for camera movement at this demanding focal length
Cons — Canon EF 800mm f/5.6L IS USM
- ✗At 4.5 kg, the lens is extremely heavy and requires dedicated support such as a monopod or tripod for extended use
- ✗Fixed 800mm focal length offers no zoom flexibility, requiring the photographer to reposition physically for different compositions
- ✗Canon EF mount limits use to Canon DSLR bodies without an adapter
Reviews — Canon EF 800mm f/5.6L IS USM
Videos — Canon EF 800mm f/5.6L IS USM
A Practical Review: Canon 800mm f/5.6 Lens — Jim Goldstein
Frequently Asked Questions — Canon EF 800mm f/5.6L IS USM
What camera mount does this lens use?+
This lens uses the Canon EF mount, making it compatible with Canon DSLR cameras. It is designed specifically for the full-frame Canon DSLR system.
Does this lens have image stabilization?+
Yes, the lens features optical image stabilization. This is particularly useful given the 800mm focal length, where even minor camera movement can significantly impact image sharpness.
Is this lens compatible with APS-C Canon DSLR cameras?+
The lens is designed for full-frame Canon DSLR cameras with the EF mount, but the Canon EF mount is also used on Canon APS-C DSLR bodies, so it will physically mount and function on those cameras as well.
What filter size does this lens use?+
The lens has a 52mm filter thread. On a super telephoto lens of this size, this typically refers to a rear drop-in filter slot rather than a front-mounted filter.
How heavy is this lens?+
The lens weighs 4.5 kg, making it one of the heavier options in the super telephoto category. Photographers should plan to use a monopod or tripod with an appropriate lens collar for comfortable and stable shooting.
Does this lens support autofocus?+
Yes, the lens supports autofocus as well as manual focus. Both focus modes are available, giving photographers the ability to switch based on their shooting requirements.