Polar light is not one condition. A clear low sun can carve long shadows across snow, while cloud can remove almost every visible edge. Sea ice may appear luminous beside dark water, and a distant mountain can vanish into haze between exposures. Before choosing settings, identify the brightest important detail, the moving parts of the scene and the position from which you can photograph safely.
Latitude and season determine daylight patterns, but local weather often determines what a photograph feels like. The light around Longyearbyen in winter is not interchangeable with a summer landing in Greenland or a coastal outing in Nunavut. Research the destination and travel dates, then remain ready to abandon a planned composition.
Expose for useful detail, not a grey average
A meter may render a snow-dominated scene darker than you intend, particularly when it tries to bring the overall brightness towards a middle tone. Positive exposure compensation can help in some modes and scenes, but a fixed adjustment is not a dependable recipe. Dark water, a bright sky or a small animal can change the meter’s response significantly.
Make a test exposure and inspect the histogram and highlight warnings. A graph extending towards the right can be normal for a bright snow scene; the question is whether important highlights are clipping. If your camera shows individual colour channels, check those too. Tiny specular glints may be expendable, while broad areas of sunlit snow may carry texture essential to the image.
Remember that many in-camera histograms are based on a processed preview rather than the full raw data. Raw recording offers editing flexibility, but it does not guarantee the recovery of genuinely clipped information. Use a preview style you understand, check results and leave a reasonable margin when the light is changing quickly.
Choose shutter speed for the subject and platform
A static ridge, a flying kittiwake and a moving inflatable boat create different demands. Choose a shutter speed that accounts for subject motion, focal length, your own stability and the platform beneath you. Image stabilisation can help with camera movement, but it does not freeze a moving animal.
If a faster shutter requires more sensitivity, accept some noise rather than relying on an exposure that is visibly blurred. Make short, purposeful bursts when appropriate, then lower the camera and check the scene around you. Do not walk backwards, cross a guide’s boundary or brace on unstable ice to improve a frame.
Find structure when contrast disappears
In flat light, look for subjects with their own tonal or textural separation: a dark rock, a distant shoreline, wind-shaped snow or a repeating line of ridges. A frame with fewer elements is often easier to read. Avoid adding foreground simply because a composition rule says it should be there.
Low contrast can also make terrain difficult to judge. If the horizon disappears or visibility drops, photographic ambition should give way to group movement and your guide’s instructions. A map, satellite image or attractive route on a screen does not establish that snow, sea ice or a glacier is safe to travel on.
Keep colour deliberate
Snow reflects the colour of its illumination and surroundings. Shade, cloud, reflected light and warm low sun can all produce different results. White balance is an interpretive choice, not an obligation to turn every snow surface neutral. A consistent starting setting can make a sequence easier to assess, especially when shooting raw.
When editing, protect the distinction between snow, ice and sky rather than pushing every colour towards drama. Check subtle gradients for banding and inspect bright areas after local adjustments. If you alter a scene substantially, avoid presenting it as an unmodified record of field conditions.
Prepare settings before the opportunity arrives
Set up a practical starting mode while you are sheltered. Practise changing exposure compensation, autofocus area and shutter speed with the gloves you will actually wear. Keep a lens cloth accessible in a dry pocket and avoid breathing onto cold glass, where moisture can condense or freeze.
A polarising filter can be useful in selected conditions, but its effect varies with the angle to the sun and can be uneven across a wide view. Filters also add handling and cleaning tasks. Bring one only if you understand the effect and can fit it without exposing equipment or losing awareness of the group.
The last adjustment is often subtraction: a simpler edge, a quieter horizon, a smaller subject in a larger landscape. If obtaining that improvement requires disturbing wildlife or stepping into uncertain terrain, keep the imperfect frame or make none at all. Good judgement remains visible in the work you choose not to force.