柯达专业 Portra 400 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：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:47:56","to":"2026-06-26 02:47:56"}
• intros：{"brand_intro":"柯达（Kodak）成立于1888年，是全球影像行业的百年巨头，曾发明首款傻瓜相机和彩色胶卷。其专业胶片系列以细腻颗粒、自然肤色还原和宽泛曝光宽容度著称，是胶片摄影爱好者和人像摄影师的首选品牌。","product_intro":"Portra 400 是柯达最畅销的专业彩色负片，ISO 400 感光度兼顾室内外拍摄。它拥有极细的颗粒结构和出色的肤色还原能力，色彩偏暖、过渡柔和，适合人像、婚礼及日常街拍。支持迫冲至 ISO 800，在弱光下仍能保持良好画质。","key_specs":["感光度：ISO 400/27°","规格：135胶卷（36张/卷）","颗粒度：RMS 8（极细）","色彩特性：自然肤色、暖调","曝光宽容度：±2 EV","迫冲能力：支持至 ISO 800"]}
• alt_products：[{"product_name":"柯达专业 Portra 400 彩色负片","brand":"Kodak","model":"Portra 400","price":89},{"product_name":"伊尔福 XP2 Super 400 黑白负片（彩色负片替代推荐）","brand":"Ilford","model":"XP2 Super 400","price":65},{"product_name":"富士 Fujicolor C200 彩色负片","brand":"Fujifilm","model":"C200","price":58}]
• kol_quotes：["@摄影师林海：Portra 400 的肤色过渡像奶油一样顺滑。","@胶片控小C：拍完不用调色，直出就很高级。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":94.1,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞其肤色表现自然、颗粒细腻，尤其在户外人像中色彩通透。部分用户认为价格偏高，但画质对得起专业定位。在弱光下迫冲至 ISO 800 仍可接受，暗部细节丰富。缺点是货源有时紧张，且需注意冷藏保存。整体评价极高，是胶片入门和进阶的标杆产品。","source_count":0}},{"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 的肤色过渡像奶油一样顺滑。","@胶片控小C：拍完不用调色，直出就很高级。"]}}]
• method_version：v2
• search_visual：null