10–20 cm
Typical length (family range)
1/800 s
Shutter: perched / still
1/2500–1/3200 s
Shutter: action / flight
f/5.6–f/7.1
Aperture
10,309
Research-grade sightings in N. America
Recommended camera settings#
ModeManual + Auto ISOLock shutter & aperture, let ISO float
Shutter (still)1/800 s
Shutter (action)1/2500–1/3200 s
Aperturef/5.6–f/7.1
FocusAF-C + subject/eye detectionBird-eye AF with continuous focus (AF-C/AI Servo); fill at least a third of the frame.
DriveHigh-speed burst
Lens400–600 mmFull-frame equivalent
Focal length needed to frame it#
For a subject about 15 cm long filling a third or half of the frame width horizontally. Small birds demand long lenses and a close approach — a blind or feeder setup helps.
| Distance | ⅓ of frame (FF) | ½ of frame (FF) | ⅓ of frame (APS-C) | ⅓ of frame (MFT) |
|---|---|---|---|---|
| 5 m (16 ft) | 367 mm | 536 mm | 245 mm | 183 mm |
| 10 m (33 ft) | 734 mm | 1,071 mm | 489 mm | 367 mm |
| 15 m (49 ft) | 1,101 mm | 1,607 mm | 734 mm | 550 mm |
| 20 m (66 ft) | 1,468 mm | 2,143 mm | 979 mm | 734 mm |
| 30 m (98 ft) | 2,202 mm | 3,214 mm | 1,468 mm | 1,101 mm |
| 50 m (164 ft) | 3,669 mm | 5,357 mm | 2,446 mm | 1,835 mm |
About the Cinnamon-rumped Seedeater#
The cinnamon-rumped seedeater (Sporophila torqueola) is a passerine bird in the typical seedeater genus Sporophila.
Summary adapted from Wikipedia via iNaturalist (CC BY-SA 4.0).
Field-craft tips#
- Bright colours pop in soft overcast light.
- Bird-eye AF with continuous focus (AF-C/AI Servo); fill at least a third of the frame.
- Sightings peak in April, May, 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 Tanagers and Allies#
Frequently asked questions#
What lens do I need to photograph a Cinnamon-rumped Seedeater?
At about 15 cm long, a cinnamon-rumped seedeater fills a third of a full-frame image at 10 m with roughly 734 mm, or at 20 m with 1,468 mm.
What shutter speed should I use for a Cinnamon-rumped Seedeater?
1/800 s when it's still; 1/2500–1/3200 s for action.
When is the best time to photograph a Cinnamon-rumped Seedeater?
Observations in North America peak in April, May, June, July and August. Early morning and late afternoon give the best light and activity.
Sources & licences#
- iNaturalist — Observation data CC BY-NC; photo licence as credited
- Wikipedia — CC BY-SA 4.0
Last updated October 03, 2026 · How we calculate · Sources