How to Photograph Fireworks with Bulb Mode: Settings and Tips

The reason most fireworks photos miss the burst is that preset shutter speeds force you to react to light that’s already gone. Bulb mode removes the guesswork entirely.

The Framework

Bulb mode is a camera setting where the shutter stays open as long as you hold the button down (or keep a remote trigger engaged). For fireworks, this means you control the exact exposure window: press when the firework launches, release after the burst fades. You’re anticipating the arc, not reacting to the explosion.

This solves the core problem with fireworks photography. A 1/250 shutter captures fragments instead of trails; a fixed 4-second exposure overlaps multiple bursts into an overexposed mess; bulb mode lets you capture exactly one complete arc-and-burst sequence with no guessing. It’s the difference between luck and repeatability.

Camera Settings

Start here and adjust from experience:

• Mode: Bulb (marked “B” or “BULB” on the mode dial — not available on all entry-level cameras)
• Aperture: f/8 (enough depth of field for sharp foreground elements; more forgiving than wide open)
• ISO: 100 (fireworks emit substantial light; higher ISO adds noise without benefit)
• Format: RAW or RAW + JPEG (latitude to fix exposure in post)
• Focus: Manual, pre-focused on a fixed landmark near the launch point

Autofocus won’t lock on a dark sky with intermittent light. Before the show begins, set manual focus on a lit structure near where the fireworks will appear and leave it there.

Use a Tripod and Remote Shutter

Any camera movement during a long exposure will smear the light trails. A stable tripod is non-negotiable. Use the widest, heaviest-duty option you have for the display.

A cable release or wireless remote prevents shutter button vibration from entering the shot. Most mirrorless cameras also support smartphone app shutter control, which works just as well.

Adjust Aperture During the Finale

Grand finale sequences fire multiple bursts simultaneously. What works at f/8 for single bursts will overexpose when five shells are in frame at once. During the finale, narrow aperture to f/11 or f/16 to preserve the layered burst pattern without blowing out the image.

Where It Doesn’t Apply

Point-and-shoot cameras and phone cameras typically lack true bulb mode. For those, use a dedicated fireworks scene mode if available, or a long-exposure camera app. The core principle — longer exposure on a stable platform — still applies, even without manual bulb control. Results will be less predictable but the keeper rate improves over snapshots.

Source: The Phoblographer

Content created with AI assistance and reviewed for accuracy.