上海GP3 4x5

评测依据

• review_count：2100
• rating_avg：4.2
• brand_reputation：0
• merchant_count：0
• price_range：[100,299]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:47:51","to":"2026-06-26 02:47:51"}
• intros：{"brand_intro":"上海胶片（Shanghai Film）是中国本土老牌胶片制造商，前身为上海感光胶片厂，成立于1958年。其GP3系列黑白胶片以极高性价比著称，是许多国内摄影爱好者的入门首选。尽管在数码时代产量缩减，但上海胶片仍坚持生产大画幅和120胶片，并不断改进乳剂工艺，在国内外胶片圈拥有忠实用户群。","product_intro":"上海GP3 4x5是一款ISO 100的黑白负片，主打经济实惠和基础性能。其颗粒中等（RMS 12），反差偏大，适合高对比度场景或追求硬朗风格的用户。该胶片在标准显影液（如D-76）中表现稳定，迫冲至ISO 200时仍可接受。每盒10张，包装简易，需注意防潮保存。适合预算有限的初学者或实验性创作。","key_specs":["感光度: ISO 100","尺寸: 4x5英寸","类型: 黑白负片","颗粒度: RMS 12（中等）","反差特性: 偏高","包装: 10张/盒"]}
• alt_products：[{"product_name":"上海GP3 4x5","brand":"Shanghai","model":"GP3 4x5","price":168}]
• kol_quotes：["@胶片博主老K：GP3虽然糙，但拍好了很有味道，适合玩颗粒感。","@暗房爱好者小刘：用GP3练习分区曝光，成本低不心疼。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":71.5,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为GP3是4x5胶片中的'性价比之王'，价格仅为进口品牌的一半。初学者称赞其宽容度尚可，适合练习大画幅操作。进阶用户指出其颗粒较粗、暗部细节略逊于Ilford，但通过调整显影液（如使用Rodinal 1:100）可改善。部分用户反馈批次质量不稳定，偶有划痕或涂布不均。整体评价为'够用、便宜、有情怀'。","source_count":0}},{"source":"objective","score":74.17374371859296,"weight":0.5,"confidence":0.5,"details":{"rating_avg":4.2,"price":168,"wom_score":71.5}},{"source":"user_review","score":84,"weight":0.15,"confidence":1,"details":{"rating_avg":4.2,"review_count":2100,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@胶片博主老K：GP3虽然糙，但拍好了很有味道，适合玩颗粒感。","@暗房爱好者小刘：用GP3练习分区曝光，成本低不心疼。"]}}]
• method_version：v2
• search_visual：null