C2慢速變焦推近
安靜的注視、恍然大悟；1970 年代的觀察式風格
拉焦Rack focus
拉焦是攝影機不動、把焦點從一個主體轉到另一個的手法。用途：把注意力從物件轉到人（或反過來）；把線索連到主人。
C1新增開始與結束
提示詞
場景段落 夜晚的長長醫院走廊，寫實醫療驚悚片，35mm 底片質感。一位黑髮盤成髮髻、身穿白色護士服的年輕菲律賓護理師，站在走廊盡頭的護理站後方，位於畫面中央、望向鏡頭，手裡拿著一份病歷。她身後的走廊筆直延伸到遠方的消失點，一排排房門與天花板燈逐漸後退。一具米色轉盤電話放在左下方近景的櫃台上。冷色日光燈照明。
淺景深的中遠景、平視，攝影機固定在三腳架上。0–2s: 前景的轉盤電話清晰對焦，她在後方是一片柔和的模糊。2–4s: 焦點開始從電話移向她。4–6s: 電話融成柔和的模糊，她變得清晰。6–8s: 她從病歷上抬頭望向電話，清楚銳利。全程：攝影機位置和構圖固定，只有焦點改變，一鏡到底。
英文原文（產生範例影片的提示詞）
Scene paragraph Night in a long hospital corridor, photoreal medical thriller, 35mm film look. A young Filipina nurse with her black hair in a bun, wearing a white nurse's uniform, stands behind a nurses' station at the far end of the corridor, in the middle of the frame looking toward the lens, holding a paper chart. Behind her the corridor runs straight back to a distant vanishing point, rows of doors and ceiling lights receding. A cream rotary phone sits on the counter in the near foreground at lower left. Cool fluorescent light.
Medium-wide shot at eye level with a shallow depth of field, the camera locked on a tripod. 0–2s: the rotary phone in the foreground is in crisp focus and she is a soft blur behind it. 2–4s: the focus begins to shift from the phone toward her. 4–6s: the phone melts into a soft blur and she comes into sharp focus. 6–8s: she looks up from the chart toward the phone, crisp and clear. Throughout: the camera position and framing stay fixed, only the focus changes, one continuous take.
可重複使用的鏡頭層
- 開場{前景} 清楚，[主體] 在後方模糊
- 移動焦點開始移動，攝影機不動
- 展開前景融成模糊，[主體] 變得清晰
- 落點[主體] 清楚銳利 [表演]
技巧
寫出兩個深度，以及一開始誰是清楚的。「電話清晰對焦，她在後方是一片柔和模糊」就設好了拉焦。
