How to photograph northern lights

Overview

Capturing the ethereal beauty of the Northern Lights (Aurora Borealis) through photography is a rewarding experience, but it requires specific equipment and techniques. The aurora is a natural light display in the Earth's sky, predominantly seen in high-latitude regions around the Arctic. Its appearance, characterized by dancing curtains of green, pink, purple, and red light, is dependent on solar activity and atmospheric conditions. Successful aurora photography hinges on being prepared for cold, dark environments and mastering your camera's manual controls.

Essential Equipment

Camera: A DSLR or mirrorless camera with manual controls is highly recommended. These cameras allow you to adjust aperture, shutter speed, and ISO independently, which is crucial for low-light photography. While some advanced smartphone cameras can achieve decent results, dedicated cameras offer superior control and image quality.

Lens: A wide-angle lens (14mm to 24mm on a full-frame camera) is ideal for capturing the expansive nature of the aurora. Look for a lens with a fast aperture (f/2.8 or wider) to let in as much light as possible, which is critical for shooting in the dark.

Tripod: A sturdy tripod is non-negotiable. You'll be using long exposure times, and any camera movement will result in blurry images. Ensure your tripod is stable enough to withstand wind, which is common in the locations where auroras are visible.

Remote Shutter Release or Timer: To avoid camera shake when pressing the shutter button, use a remote shutter release or your camera's built-in timer (set to 2 or 5 seconds). This ensures the camera is perfectly still when the exposure begins.

Extra Batteries: Cold weather drains camera batteries quickly. Bring at least one or two spare batteries, and keep them warm in an inside pocket when not in use.

Headlamp with Red Light: A headlamp is essential for navigating in the dark. A red light setting is preferable as it preserves your night vision and that of others around you.

Camera Settings

Manual Mode (M): You'll need to take full control of your camera's settings. Auto modes will struggle in the dark and won't produce optimal results.

Focus: Set your lens to manual focus (MF) and focus to infinity. Many lenses have an infinity symbol (∞). It's best to test this during daylight or use live view to zoom in on a distant object and manually adjust the focus until it's tack sharp. Sometimes, focusing precisely on infinity requires slightly de-focusing from the mark.

Aperture: Use the widest aperture your lens allows (e.g., f/2.8, f/1.8). This lets in the maximum amount of light, reducing the need for extremely high ISO or long shutter speeds.

Shutter Speed: This is where you'll capture the light. Start with an exposure time of 15-30 seconds. The exact duration depends on the brightness and speed of the aurora. If the aurora is faint and slow-moving, you might need longer exposures (up to 30 seconds or more). If it's very active and bright, you might need shorter exposures (e.g., 10-15 seconds) to avoid blowing out the highlights or showing motion blur in the fast-moving lights.

ISO: Start with an ISO of 800 or 1600. Increase it to 3200 or even 6400 if your camera handles noise well and you need more light. Higher ISO settings introduce digital noise, so find a balance between brightness and acceptable noise levels. Modern cameras are much better at handling high ISOs than older models.

White Balance: Auto white balance can be inconsistent. Try setting it to 'Daylight' or 'Kelvin' (around 3200-4000K) and adjust as needed. Shooting in RAW format allows you to easily adjust white balance in post-processing without losing quality.

Shooting Techniques

Location: Find a location away from city lights to minimize light pollution. Look for dark skies with a clear view of the horizon. Mountains, open fields, or coastlines can offer dramatic foregrounds.

Timing: The aurora is most active during periods of high solar activity. Check aurora forecast websites and apps (like the NOAA Space Weather Prediction Center or My Aurora Forecast). The best viewing times are typically between 10 PM and 3 AM local time, but this can vary.

Composition: Include foreground elements like trees, mountains, or lakes to add depth and scale to your images. Experiment with different angles and perspectives.

Test Shots: Take several test shots to fine-tune your settings. Review the images on your camera's LCD screen, zooming in to check focus and exposure. Adjust shutter speed and ISO based on the results.

Shoot in RAW: Always shoot in RAW format if your camera allows. RAW files contain more image data than JPEGs, giving you much greater flexibility for editing, especially for adjusting exposure and white balance.

Post-Processing

Aurora photographs often benefit from post-processing. Use software like Adobe Lightroom or Photoshop to:

• Adjust exposure and contrast.
• Fine-tune white balance.
• Reduce noise.
• Sharpen the image.
• Enhance colors (subtly).

The goal is to enhance the natural beauty of the aurora, not to create something artificial. Patience and practice are key to mastering aurora photography and capturing stunning images of this natural phenomenon.