Shutter speed decides how much of a moment lands in the frame. It has to beat two different movements at once: your subject’s, and your own hands’. Most disappointing photographs on this camera are a shutter speed that lost one of those two races.
mech. 30 s – 1/4000 s elec. to 1/32000 s Bulb to 60 min
Shutter speed by subject
| Subject | Start at | Note |
|---|---|---|
| Still life, static, handheld | 1/60 s at 15 mm | With OIS on |
| Adult standing, posed | 1/125 s | Covers small sways |
| Person walking | 1/250 s | |
| Kids playing, pets moving | 1/500 s | The most commonly under-set case |
| Kids running, dog at full tilt | 1/1000 s | |
| Car passing at speed | 1/1000-1/2000 s | |
| Panning: subject sharp, background streaked | 1/30-1/60 s | Move the camera with the subject |
| Silky water, small waterfall | 1/4-1 s | Tripod required |
| Traffic light trails | 5-20 s | Tripod required |
The handheld rule on a body with no IBIS
The old rule is: keep the shutter at least as fast as one over the equivalent focal length. At 45 mm — 69 mm equivalent — that means about 1/80 s. On the X-M5 add a safety margin, because you are holding the camera away from your body with no viewfinder to brace against, then subtract what the lens’s OIS gives back (Fujifilm rates it at 3 EV; an independent test measured 2.7 to 3.0 EV at 45 mm).
Practical floor
With OIS on and elbows tucked: 1/60 s at 15 mm, 1/80 s at 23 mm, 1/125 s at 45 mm. Below that, brace against something or accept that some frames will be soft. OIS fixes your shake; it does nothing about your subject moving.
Mechanical or electronic shutter?
The choice lives at SHOOTING SETTING > SHUTTER TYPE. The mechanical shutter runs 30 s to 1/4000 s plus Bulb to 60 minutes. The electronic shutter reaches 1/32000 s and is silent — but it reads the sensor line by line, so fast movement leans or wobbles, and some artificial lights cause banding.
- Default to mechanical. It is honest about motion.
- Switch to electronic when you need silence (a ceremony, a sleeping child) or a speed beyond 1/4000 s — for example wide open in bright sun.
Sunny 16: a meter you can carry in your head
In direct sunlight, set f/16 and a shutter of roughly one over the ISO. At ISO 200 that is f/16 at 1/200 s; the same exposure is f/8 at 1/800 s, or f/5.6 at 1/1600 s. Use it to sanity-check the meter when a scene is fooling it.
| Light | Aperture, with shutter = 1/ISO |
|---|---|
| Snow or beach, harsh sun | f/22 |
| Bright sun, hard shadows | f/16 |
| Slight overcast, soft-edged shadows | f/11 |
| Overcast, shadows barely visible | f/8 |
| Heavy overcast, no shadows | f/5.6 |
| Open shade or sunset | f/4 |
Common mistakes
- Trusting the screen to show motion blur. It shows brightness. Blur only appears after you shoot — so shoot and check.
- Assuming OIS makes a moving child sharp. It stabilises the camera, not the child.
- Leaving 1/60 s set from an indoor session and taking it to a playground.
Assignment: find your own shake limit
Zoom to 45 mm. Mode S, Auto ISO. Photograph a page of printed text on a wall at 1/125, 1/60, 1/30, 1/15 and 1/8 s, five frames at each speed. On a computer, find the slowest speed where at least four of five frames are genuinely sharp. That number is your floor, not the rule’s — and it is worth knowing.