Mammal field guide · Bears

Photographing the Brown Bear

How to photograph the Brown Bear (Ursus arctos): the right lens for its size, shutter speeds for perched and moving animals, and when it's most often seen (June, July and August).

150–280 cm1/2000 s
Brown Bear (Ursus arctos)
Photo: © Nathan Ruser, some rights reserved (CC BY), uploaded by Nathan Ruser via iNaturalist
150–280 cm
Typical length (family range)
1/500 s
Shutter: perched / still
1/2000 s
Shutter: action / flight
f/4–f/6.3
Aperture
10,908
Research-grade sightings in N. America
ModeManual + Auto ISOLock shutter & aperture, let ISO float
Shutter (still)1/500 s
Shutter (action)1/2000 s
Aperturef/4–f/6.3
FocusAF-C + subject/eye detectionDawn and dusk activity means high ISO — prioritise shutter speed and accept some noise.
DriveHigh-speed burst
Lens100–400 mmFull-frame equivalent

Focal length needed to frame it#

For a subject about 215 cm long filling a third or half of the frame width horizontally.

Distance⅓ of frame (FF)½ of frame (FF)⅓ of frame (APS-C)⅓ of frame (MFT)
5 m (16 ft)27 mm42 mm18 mm14 mm
10 m (33 ft)55 mm83 mm37 mm27 mm
15 m (49 ft)82 mm125 mm55 mm41 mm
20 m (66 ft)110 mm166 mm73 mm55 mm
30 m (98 ft)165 mm249 mm110 mm82 mm
50 m (164 ft)275 mm415 mm183 mm137 mm

When to find it#

Jan: 0% Jan Feb: 0% Feb Mar: 0% Mar Apr: 1% Apr May: 13% May Jun: 22% Jun Jul: 24% Jul Aug: 21% Aug Sep: 14% Sep Oct: 4% Oct Nov: 1% Nov Dec: 0% Dec
Share of iNaturalist observations by month across North America. Peak months: June, July and August.

About the Brown Bear#

The brown bear (Ursus arctos) is the most widely distributed bear and is found across much of northern Eurasia and North America. It is one of the largest living terrestrial members of the order Carnivora, rivaled in body size only by its close cousin, the polar bear (Ursus maritimus), which is much less variable in size and slightly larger on average.

Summary adapted from Wikipedia via iNaturalist (CC BY-SA 4.0).

Field-craft tips#

  • Keep 100 m from bears; use 600 mm and crop.
  • Carry bear spray; never approach cubs.
  • Dawn and dusk activity means high ISO — prioritise shutter speed and accept some noise.
  • Sightings peak in June, July and August, which is when you'll have the most chances.

Ethics#

  • The welfare of the animal comes first: if it changes its behaviour because of you, you are too close.
  • Stay on trails, respect closures around nests, leks, dens and haul-outs.
  • Avoid playback and baiting in sensitive seasons; never bait predators.
  • Don't share precise locations of rare, nesting or roosting animals publicly.

More Bears#

Frequently asked questions#

What lens do I need to photograph a Brown Bear?

At about 215 cm long, a brown bear fills a third of a full-frame image at 10 m with roughly 55 mm, or at 20 m with 110 mm.

What shutter speed should I use for a Brown Bear?

1/500 s when it's still; 1/2000 s for action.

When is the best time to photograph a Brown Bear?

Observations in North America peak in June, July and August. Early morning and late afternoon give the best light and activity.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources