柯达 Portra 400 专业彩色负片

评测依据

• review_count：3200
• rating_avg：4.8
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_quality
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 02:47:55","to":"2026-06-26 02:47:55"}
• intros：{"brand_intro":"柯达（Kodak）成立于1888年，是全球影像行业的先驱与传奇。曾主导胶片摄影时代，以色彩科学与民用胶卷闻名。尽管经历数码转型阵痛，其专业胶片产品线至今仍是胶片爱好者的首选，尤其在人像与纪实摄影领域拥有不可撼动的地位。","product_intro":"Portra 400是柯达最畅销的中速专业彩色负片，ISO 400/27°。以其细腻的颗粒、柔和的肤色还原和宽广的曝光宽容度著称，适合人像、婚礼及日常街拍。在过曝或欠曝1-2档时仍能保持出色色彩表现，是胶片入门与进阶用户的\"万能卷\"。","key_specs":["感光度：ISO 400/27°","类型：彩色负片（C-41工艺）","规格：135胶卷（36张/卷）","颗粒度：RMS 8（极细）","宽容度：-2至+3档","色彩特性：暖调肤色还原，低反差"]}
• alt_products：[{"product_name":"柯达 Portra 400 专业彩色负片","brand":"柯达","model":"Portra 400","price":89},{"product_name":"伊尔福 HP5 Plus 黑白负片","brand":"伊尔福","model":"HP5 Plus","price":62}]
• kol_quotes：["@摄影师林海：Portra 400是我唯一会囤货的胶卷，肤色过渡像奶油一样顺滑。","@胶片实验室：它的宽容度让新手也能拍出专业级曝光。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":94.1,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞其色彩自然柔和，尤其对肤色的表现力极佳，被誉为'人像之王'。颗粒细腻，即使放大至20寸仍无明显噪点。宽容度惊人，在强逆光或暗光环境下仍能保留细节。部分用户认为价格偏高，但认为物有所值。京东好评率98%，天猫旗舰店评分4.9。","source_count":2}},{"source":"objective","score":95.24,"weight":0.5,"confidence":0.8,"details":{"rating_avg":4.8,"review_count":3200,"wom_score":94.1}},{"source":"user_review","score":96,"weight":0.15,"confidence":1,"details":{"rating_avg":4.8,"review_count":3200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@摄影师林海：Portra 400是我唯一会囤货的胶卷，肤色过渡像奶油一样顺滑。","@胶片实验室：它的宽容度让新手也能拍出专业级曝光。"]}}]
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