四座城市四种天气的黑白街拍

Four candid black-and-white street photographs arranged as a 2x2 grid, 16:9 as a whole, with slim white gutters between them. Give each panel its own city, hour and weather, chosen to clash: a rainy dusk, a harsh midday, a neon-soaked night, a foggy dawn. Camera for all panels: Leica M6, 35mm Summicron, Kodak Tri-X rated at 800 (pushed). Focus by zone, f/8–f/11, roughly 3 m out, shutter 1/250s. The walking pedestrian stays crisp mid-stride and the background is still legible, whereas something at arm's length in front is blurred and slices into the edge of the frame. Let the horizon lean a few degrees, the composition stay a touch off, and the subject sit away from center. Catch the person absorbed in what they are doing, oblivious to the lens. A sign, billboard, statue or shop window behind them should quietly mock them, a juxtaposition in the spirit of the classic humorist street photographers. Texture: heavy visible grain, crushed deep shadows, strong contrast. Make it a true documentary photograph, not a render: avoid CGI gloss, avoid cinematic grading, and include no text or captions.