Recommended camera settings#
Focal length needed to frame it#
For a subject about 75 cm long filling a third or half of the frame width horizontally.
| Distance | ⅓ of frame (FF) | ½ of frame (FF) | ⅓ of frame (APS-C) | ⅓ of frame (MFT) |
|---|---|---|---|---|
| 5 m (16 ft) | 78 mm | 117 mm | 52 mm | 39 mm |
| 10 m (33 ft) | 156 mm | 234 mm | 104 mm | 78 mm |
| 15 m (49 ft) | 234 mm | 352 mm | 156 mm | 117 mm |
| 20 m (66 ft) | 312 mm | 469 mm | 208 mm | 156 mm |
| 30 m (98 ft) | 468 mm | 703 mm | 312 mm | 234 mm |
| 50 m (164 ft) | 780 mm | 1,172 mm | 520 mm | 390 mm |
About the Sweet vernal grass#
Anthoxanthum odoratum, known as sweet vernal grass, is a short-lived perennial grass that is native to acidic grassland in Eurasia. It is grown as a lawn grass and a house plant, due to its sweet scent, and can also be found on unimproved pastures and meadows. The specific epithet odoratum is Latin for 'odorous'.
Summary adapted from Wikipedia via iNaturalist (CC BY-SA 4.0).
Field-craft tips#
- Get down to eye level; a long lens with close focus (or an extension tube) helps with small subjects.
- Sightings peak in April and May, 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.
Frequently asked questions#
What lens do I need to photograph a Sweet vernal grass?
At about 75 cm long, a sweet vernal grass fills a third of a full-frame image at 10 m with roughly 156 mm, or at 20 m with 312 mm.
What shutter speed should I use for a Sweet vernal grass?
1/800 s when it's still; 1/2000 s for action.
When is the best time to photograph a Sweet vernal grass?
Observations in North America peak in April and May. 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