Why I Use the 800mm for Wild Horse Photography
Missouri’s wild horses rarely arrange themselves for a photographer. They move across large open fields, disappear into tree lines, and often remain well beyond the practical range of shorter lenses. The Canon EF 800mm f/5.6L IS USM allows me to photograph across that distance and create intimate images without physically pushing closer to the horses.
That distance is important to how I work. I want to observe and photograph natural behavior—not influence what the horses are doing. With 800mm of native reach, I can remain farther away while still filling the frame with an individual horse, a quiet interaction between herd members, or a small gesture that might otherwise be lost in the larger landscape.
The lens is especially valuable when the horses are gathered near a woodland edge or standing in areas with visually complicated backgrounds. Its extremely narrow angle of view allows me to isolate the horse and simplify the scene. By working from a greater distance, I can also produce the compressed perspective and soft, unobtrusive backgrounds that have become an important part of the visual character of this work.
I chose a native 800mm prime because it gives me this reach without depending on a teleconverter. The f/5.6 maximum aperture provides a useful balance between focal length, light-gathering ability, and subject isolation. Canon designed the lens with two fluorite elements, one UD element, and one Super UD element to control color fringing and maintain strong sharpness and contrast.
This is not a small or casual lens. It weighs approximately 9.9 pounds, so I normally support it with a monopod and gimbal head. That combination gives me enough stability for the extremely narrow field of view while still allowing me to follow the horses as they move. The lens also includes four-stop optical image stabilization, which is helpful when working in changing field conditions.
The photographs on this page show why I carry such a specialized lens into the field: extraordinary reach, strong subject isolation, fine detail, and access to quiet moments that often unfold far beyond the useful range of conventional wildlife lenses.
Get my best wild horse photos, field updates, foal news, and quiet stories by email.
Wild Horse Image Gallery
Wild Horse Info & Resources
[History of Missouri’s Wild Horses] – [Ozark Wild Horse Protection Act] – [Missouri Wild Horse League] – [Missouri Wild Horse Field Guide] – [Wild Horse Gallery]
Canon EF 800mm f/5.6L IS USM Lens Technical Specifications
Lens Type
- Lens: Canon EF 800mm f/5.6L IS USM
- Lens mount: Canon EF
- Lens type: Professional L-series super-telephoto prime
- Focal length: 800mm
- Maximum aperture: f/5.6
- Minimum aperture: f/32
Optical Design
- Lens construction: 18 elements in 14 groups
- Special optical elements: Two fluorite elements, one UD element, and one Super UD element
- Diaphragm blades: Eight
- Horizontal angle of view: 2° 35′
- Vertical angle of view: 1° 40′
- Diagonal angle of view: 3° 5′
The specialized optical design is intended to reduce chromatic aberration, color fringing, flare, and ghosting while maintaining strong contrast and color balance.
Focusing
- Autofocus motor: Ring-type Ultrasonic Motor
- Focusing design: Internal focusing
- Manual focus: Full-time mechanical manual-focus capability
- Minimum focusing distance: 19.7 feet, or 6 meters
- Maximum magnification: 0.14×
- Focus preset function: Allows a predetermined focus distance to be stored and quickly recalled
Canon’s ring-type USM system provides autofocus while allowing manual focus adjustments without changing the lens from autofocus to manual-focus mode.
Image Stabilization
- Optical Image Stabilizer: Rated for up to four stops of camera-shake correction
- IS Mode 1: Corrects movement in multiple directions and is intended primarily for stationary subjects
- IS Mode 2: Designed for following or panning with moving subjects
Mode 2 is particularly useful when following a horse moving across the frame because the stabilizer accounts for the deliberate panning movement. Image stabilization reduces camera movement, but a sufficiently fast shutter speed is still needed to stop movement by the horse.
Size and Construction
- Maximum diameter: Approximately 6.4 inches, or 162–163mm
- Length: Approximately 18.1 inches, or 461mm
- Weight: Approximately 9.9 pounds, or 4,500 grams
- Barrel construction: Magnesium alloy
- Environmental protection: Weather-resistant construction and sealing
- Filter system: 52mm rear drop-in filter holder
The magnesium-alloy barrel helps control weight while providing the strength needed for professional wildlife, sports, and nature photography.
Supplied and Compatible Accessories
- Lens hood: Canon ET-155
- Front lens cap: Canon E-180C or E-180D
- Protective case: Canon Lens Case 800
- Filter holder: 52mm drop-in filter system
- Extender compatibility: Canon EF 1.4× and EF 2× extenders
With a compatible 1.4× extender, the lens becomes an effective 1120mm f/8. With a compatible 2× extender, it becomes an effective 1600mm f/11. Autofocus availability and performance depend on the camera body and extender combination.
Get my best wild horse photos, field updates, foal news, and quiet stories by email.
Wild Horse Info & Resources
[History of Missouri’s Wild Horses] – [Ozark Wild Horse Protection Act] – [Missouri Wild Horse League] – [Missouri Wild Horse Field Guide] – [Wild Horse Gallery]
