黑白街景决定瞬间

A highly technical and structured prompt for generating a black and white street photograph, focusing on capturing the 'decisive moment' where a single pedestrian perfectly aligns with architectural lines in a geometrically strong urban background. It specifies precise camera settings (50mm prime, f/8, manual zone focusing) and strict composition rules to mimic classic street photography masters.

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "street_photography_decisive_moment",
      "language": "en",
      "priority": "highest",
      "version": "v1.0_DECISIVE_MOMENT_GEOMETRY_NO_CROP"
    },

    "scene": {
      "location": "繁忙的城市街角",
      "time_of_day": "白天",
      "environment": "仅自然光，无人工照明",
      "activity": "行人穿过几何感强烈的背景",
      "moment_description": "单一行人进入画面，正好在运动高峰，完美对齐建筑线条"
    },

    "camera_logic": {
      "lens": "50mm prime",
      "aperture": "f/8",
      "shutter_speed": "1/250",
      "iso": "auto",
      "focus_mode": "手动区域对焦",
      "focus_distance": "大约3米"
    },

    "composition_logic": {
      "approach": "预构图",
      "geometry_priority": "高",
      "human_subject_role": "次于构图但完美时机",
      "crop_policy": "不裁剪，画面必须在相机内完整"
    },

    "timing_logic": {
      "capture_rule": "仅在人物运动高峰时捕捉",
      "burst_mode": "最少，最多1-2帧",
      "anticipation_based": true
    },

    "style": {
      "color": "黑白",
      "contrast": "中等",
      "tonality": "自然、类似胶片",
      "mood": "安静、精准、永恒"
    },

    "negative_prompt": "摆拍的主体、人工照明、浅景深、戏剧性模糊、重度后制处理、电影式夸张、裁剪、变焦镜头效果"
  }
}

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