Rain on a window offers two subjects at once: droplets close to the camera and the scene beyond. Without deciding which plane matters, autofocus may switch between them. One clear starting point is a sharp group of droplets against a softly recognizable background. Exterior colours and shapes then supply context without competing with the drops.
Treat the glass as the subject
Find a group of droplets with different sizes and some space around them. An evenly covered window can become visually busy. Focus with a small point on an identifiable droplet edge or use manual magnification. Remain beyond minimum focusing distance. If focus fails, step back slightly rather than pressing ever closer to the glass.
Move sideways to place bright exterior areas behind the drops. Individual lights can soften into larger shapes while dark regions emphasize outlines. A very wide aperture strongly isolates the plane; stopping down reveals more background information. Compare both versions for what they communicate.
Reduce interior reflections
Lamps and bright objects inside can add reflections in the pane. Turn off unnecessary indoor lighting or choose a darker area behind the camera. A dark cloth can provide shielding but should not obstruct camera handling or safe operation. Inspect the whole frame for a faint reflection of your face or the room.
An oblique angle can move reflections but also changes the droplet plane’s alignment with the camera. Not all drops then lie at the same distance. A more parallel position helps if you want a larger glass area sharp. An angled view can instead be interesting for a deliberately narrow focus zone.
Moving drops and still trails
Some drops merge and run during capture. A short exposure preserves their shape; a longer one can show a trail. Also consider exterior movement if it should remain recognizable. Preserve the pane’s soft effect during editing: excessive clarity can emphasize dirt and tiny scratches more than the rain itself. Selective framing often works better than aggressive contrast sliders.
