柯达 18%中性灰卡

评测依据

• review_count：5600
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:46:33","to":"2026-06-26 02:46:33"}
• intros：{"brand_intro":"柯达（Kodak）成立于1888年，是摄影史上最具影响力的品牌之一，曾主导胶片时代。虽然数码时代转型较慢，但其在影像色彩科学领域的积累深厚。柯达灰卡延续了胶片时代的色彩标准，以高性价比和可靠品质著称，是入门级和预算有限用户的经典选择，品牌信誉依然受到老一代摄影师认可。","product_intro":"柯达18%中性灰卡是一款经典的双面灰卡，一面为18%中性灰，另一面为90%白色反射面。采用哑光涂层，减少反光干扰，可用于手动白平衡校准和曝光补偿参考。尺寸为20×25cm，适合影棚和户外使用。价格亲民，是摄影初学者学习曝光和白平衡的入门工具，也常被用作视频拍摄中的灰卡参考。","key_specs":["尺寸：20×25cm","材质：哑光纸基+涂层","反射率：18%灰面 / 90%白面","功能：白平衡校准、曝光参考","适用：摄影、摄像"]}
• alt_products：[{"product_name":"柯达 18%中性灰卡","brand":"柯达","model":"KODAK Gray Card R-27","price":45},{"product_name":"品色 双面灰卡 18%中性灰","brand":"品色","model":"PIXEL Gray Card GC-1","price":29}]
• kol_quotes：["摄影讲师@摄影笔记：柯达灰卡是新手学习曝光的最佳教具，便宜又实用。","评测博主@相机实验室：虽然简单，但它的灰值很准，比很多廉价灰卡靠谱。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":81.5,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为性价比极高，是入门摄影的必备工具。多数评价指出其灰面反射均匀，能有效帮助理解曝光三角和白平衡原理。部分用户提到纸质较软，容易折损，建议购买保护套。少数反馈在强光下涂层有轻微反光，但整体对得起价格。初学者和预算有限的爱好者推荐较多，认为比手机APP更可靠。","source_count":0}},{"source":"objective","score":76.38863636363635,"weight":0.5,"confidence":0.5,"details":{"rating_avg":4.5,"price":45,"wom_score":81.5}},{"source":"user_review","score":90,"weight":0.15,"confidence":1,"details":{"rating_avg":4.5,"review_count":5600,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["摄影讲师@摄影笔记：柯达灰卡是新手学习曝光的最佳教具，便宜又实用。","评测博主@相机实验室：虽然简单，但它的灰值很准，比很多廉价灰卡靠谱。"]}}]
• method_version：v2
• search_visual：null