柯达 Portra 400 专业彩色负片（220格式）

评测依据

• review_count：512
• rating_avg：4.9
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_quality
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:47:51","to":"2026-06-26 02:47:51"}
• intros：{"brand_intro":"柯达公司成立于1888年，是胶片摄影的奠基者。Portra系列专为人像与商业摄影设计，以柔和肤色、低反差和细腻颗粒闻名。尽管柯达在数码时代经历转型，但其专业胶片生产线依然活跃，Portra 400是当下最受欢迎的中画幅彩色负片之一。","product_intro":"Portra 400 是一款ISO 400的专业彩色负片，220格式可拍摄约24张6×6画幅。其色彩科学偏向中性，肤色还原自然柔和，反差适中，高光过渡平滑。适合人像、婚礼、旅行等场景。曝光宽容度极佳，过曝2-3档仍可保留细节，是新手与专业摄影师共同的首选。C-41工艺冲洗方便。","key_specs":{"感光度":"ISO 400","格式":"220中画幅（约24张6×6）","类型":"彩色负片（C-41工艺）","颗粒度":"RMS 10（极细）","色彩特性":"中性偏暖、低反差、肤色优化","曝光宽容度":"+3档 / -1档"}}
• alt_products：[{"product_name":"柯达 Portra 400 专业彩色负片（220格式）","brand":"柯达（Kodak）","model":"Portra 400 220","price":298},{"product_name":"伊尔福 HP5 Plus 400 黑白负片（220格式）","brand":"伊尔福（Ilford）","model":"HP5 Plus 400 220","price":185},{"product_name":"富士 Velvia 100 专业反转片（220格式）","brand":"富士（Fujifilm）","model":"Velvia 100 220","price":268}]
• kol_quotes：["@人像摄影师林然：Portra 400的肤色表现让后期修图变得多余，直出就很有质感。","@胶片测评师阿Ken：220格式的Portra 400一卷能拍24张，拍婚礼太实用了。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":93.69999999999999,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户一致认为Portra 400是\"人像胶片天花板\"，肤色表现自然不偏黄，后期校色空间大。宽容度惊人，即使测光失误也能通过扫描找回细节。220格式比120多拍一倍，但价格也更高（约298元/卷）。部分用户反馈220卷在部分相机（如玛米亚RZ67）上过片顺畅，但需注意背纸长度。缺点是近年涨价明显，且偶尔缺货。","source_count":0}},{"source":"objective","score":96.28,"weight":0.5,"confidence":0.8,"details":{"rating_avg":4.9,"review_count":512,"wom_score":93.69999999999999}},{"source":"user_review","score":98,"weight":0.15,"confidence":1,"details":{"rating_avg":4.9,"review_count":512,"source":"product_reviews_aggregate"}},{"source":"expert","score":80.80000000000001,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"matched_count":2,"base_score":82,"weighted_score":80,"sample":["@人像摄影师林然：Portra 400的肤色表现让后期修图变得多余，直出就很有质感。","@胶片测评师阿Ken：220格式的Portra 400一卷能拍24张，拍婚礼太实用了。"]}}]
• method_version：v3
• search_visual：null