Capturing the northern lights.
Without the right settings a photo comes out either blurred or dark. Three concepts decide everything.
ISO — sensitivity.
As ISO rises the camera grows more sensitive to light, but the speckling called “grain” sets in and quality drops. High-end cameras stay clean even at high ISO; know your own camera, know its limit.
Shutter speed — duration.
The northern lights move constantly. A long exposure binds the whole trail of motion together; you lose the curtain's detail. If the light is bright, shorten the exposure — balance it by raising the ISO if needed.
White balance.
White balance sets the exposure's Kelvin value. 5500–6500 K is daylight; lower values give the sky a cool, blue tone — and the aurora's green comes alive against it.
The same scene, two white balances. A warm setting (high K) gives a golden tone, while a cold setting (low K) pulls the sky toward blue and brings out the aurora's green. In night photography a cold white balance is usually preferred.
×Corrected · April 2023·AI DenoiseWith Adobe Lightroom's AI Denoise (April 2023), frames between ISO 6400–12800 can now go to print. In the field, don't be afraid to push the ISO — you rescue the cleanliness in post.
+Added · April 2023·Lightroom AI DenoiseThe one piece of software that changed aurora photography: Lightroom's AI Denoise module (with DxO PureRAW and Topaz DeNoise as alternatives). In thirty seconds it turns an ISO 6400 frame into output of ISO 1600 quality — the “fear high ISO” rule no longer holds.+Added · 2024·The aurora workflowThe new shooting flow: low ISO + short shutter in the field → bank many frames → AI denoise plus manual colour masks at the desk. Chase not a single frame but the curtain's right moment.- +Multi-frame + masking workflow
- +Lightroom AI Denoise note
- ×The ISO ceiling has risen
- ○Original · book edition