SHUTTER SPEED CHEAT SHEET
PVME Training Division — quick reference
Full-stop shutter scale
Each step doubles or halves exposure time. Halving the time = -1 stop of light.
30s — 15s — 8s — 4s — 2s — 1s — 1/2 — 1/4 — 1/8 — 1/15 — 1/30 — 1/60 — 1/125 — 1/250 — 1/500 — 1/1000 — 1/2000 — 1/4000 — 1/8000
Rule of thumb: Shutter speed controls motion. Faster = freeze. Slower = blur. Strobe-lit studio work always sits at sync speed (1/200 on Sony A7RV with Profoto).
Freezing motion
| Subject motion | Minimum shutter | Safe shutter |
|---|---|---|
| Sitting/standing portrait | 1/125 | 1/250 |
| Walking subject | 1/250 | 1/500 |
| Slow dance / first dance | 1/125 | 1/200 |
| Bouquet toss | 1/500 | 1/1000 |
| Children running | 1/500 | 1/1000 |
| Marching cadence (military) | 1/400 | 1/800 |
| Sports — field running | 1/1000 | 1/2000 |
| Bird in flight / cars | 1/2000 | 1/4000 |
Handheld floor — reciprocal rule
Minimum handheld shutter = 1 / (focal length × 2) on high-res bodies like the A7RV. IBIS helps but don't push it.
| Focal length | Old reciprocal | A7RV-safe floor |
|---|---|---|
| 24mm | 1/30 | 1/60 |
| 35mm | 1/40 | 1/80 |
| 50mm | 1/60 | 1/125 |
| 85mm | 1/100 | 1/200 |
| 135mm | 1/160 | 1/320 |
| 200mm | 1/250 | 1/500 |
Intentional motion blur — panning
| Subject speed | Pan shutter | Result |
|---|---|---|
| Walking | 1/30 | Subtle background streak |
| Jogging | 1/60 | Visible motion lines |
| Cycling | 1/125 | Sharp subject, soft background |
| Car at 30 mph | 1/60 – 1/125 | Strong streak effect |
PVME shutter chart — 12 scenarios
| Scenario | Shutter | Notes |
|---|---|---|
| Tethered studio headshot (strobe) | 1/200 | Sync speed; ambient killed |
| Military trainee headshot (strobe) | 1/200 | Same |
| Outdoor military formation | 1/500 | Catch the marching foot fall sharp |
| Wedding ceremony — vows | 1/250 | Quiet shutter mode on |
| Wedding processional | 1/400 | Walking pace + emotion |
| First dance (low light) | 1/160 | 85mm GM, IBIS on, ISO floats |
| Reception speeches | 1/200 | Watch for hand gestures |
| Bouquet/garter toss | 1/1000 | Burst mode |
| Real estate interior (ambient) | 1/4 – 1s | Tripod required |
| Real estate twilight exterior | 2s – 8s | Tripod, mirror lock equivalent |
| Engagement session (golden hour) | 1/500 | Wide aperture forces this anyway |
| Group of 20+ in formation | 1/320 | Stop one micro-twitch from killing the shot |
5 common shutter mistakes
- Going below sync speed with strobes — banding or ambient contamination. Stay at 1/200 unless using HSS.
- Trusting IBIS at 1/30 with a 70-200 — IBIS stabilizes the body, not the subject. Subject motion still blurs.
- Forgetting to raise shutter when moving outdoors — leaving 1/125 from ceremony then losing reception entrance shots.
- Auto-ISO with too-low minimum shutter — set Auto-ISO floor to 1/250 for events.
- Slow shutter on real estate without tripod — 1/15 handheld with 16-35mm = soft everywhere.