Auto exposure bracketing fires a sequence of exposures from a single shutter press. For interiors it is the difference between a clean, aligned set and three frames you nudged the tripod between.
Menu wording moves around between models and firmware versions, so treat the paths below as where to look rather than an exact transcript of your body's menu. What does not vary is the setup around it — and that part matters more than the menu itself.
Switch these off before anything else
Bracketing only works if brightness is the sole thing changing between frames. Three settings routinely break that, and all three are on by default on many bodies.
- Auto ISO — otherwise the camera may hold shutter speed and vary ISO, so your frames disagree about noise
- Auto white balance — it re-evaluates per frame, so a bracket set can drift in colour across the sequence
- Any auto-lighting optimiser (Canon Auto Lighting Optimizer, Nikon Active D-Lighting, Sony DRO) — these apply their own tone curve per frame and quietly fight the merge
Canon
AEB lives in the shooting menu, usually on the same screen as exposure compensation — look for an entry combining the two. Set the number of frames and the spacing there, then choose a continuous or self-timer drive mode so the whole sequence fires from one press.
Most bodies offer three frames as standard with a maximum spacing of around three stops. Higher-end models extend this to five or seven frames, sometimes via a custom function rather than the main menu.
Nikon
Bodies with a dedicated BKT button set bracketing by holding it and turning the command dials — one dial selects the frame count, the other the spacing. Bodies without the button carry the same controls in the photo shooting menu under auto bracketing.
Frame counts of three, five, seven and nine are common depending on the model, with spacing typically up to three stops. Check that the bracketing type is set to exposure rather than white balance or flash.
Sony
Bracketing sits inside the drive mode selection rather than a separate menu — choose continuous bracket to fire the set with one held press, or single bracket to take them one at a time. Frame count and spacing are set in the same place.
Recent bodies allow wide spacings at low frame counts and narrower spacings at higher counts, so if the frame count you want is greyed out, reduce the EV step and it will usually reappear.
Fujifilm
AE bracketing is selected from the drive dial or drive menu. Newer bodies let you set both the number of frames and the spacing; older ones fix the sequence at three frames with a limited range.
As with the others, confirm the camera is varying shutter speed — in aperture priority with auto ISO disabled, it will.
What to do when your body caps out
Some cameras will not bracket widely enough for a room with direct sun on the window. Two workarounds: shoot two AEB sequences with exposure compensation offset between them, or switch to manual and dial each exposure yourself with a remote release.
Either way the merge does not care how the frames were captured, only that they are aligned and that between them they hold the full range — nothing clipped at the bright end, real detail at the dark end.
Frequently asked questions
What is auto exposure bracketing?
A camera function that automatically shoots a sequence of frames at different exposures from a single setup — typically one metered exposure plus one or more darker and lighter frames. The set is then merged into a single image holding detail across the full range.
How many bracketed frames can my camera shoot?
It varies by model. Three frames is near-universal, five and seven are common on mid-range and professional bodies, and some allow nine. Maximum spacing is usually around three stops per step, sometimes wider at lower frame counts.
Should bracketing change shutter speed or aperture?
Shutter speed. Aperture changes depth of field between frames, so the merge receives frames that disagree about what is sharp. Shooting in aperture priority with auto ISO switched off keeps aperture and ISO fixed while the camera varies shutter speed.
Why does my camera grey out the frame count I want?
Most bodies trade frame count against EV spacing — a wide spacing limits how many frames you can select, and vice versa. Reduce the spacing and the higher frame counts usually become available again.
Try Blendpoint free
Convert RAW, merge HDR brackets, and deliver — 30-day free trial, no credit card.