适马 TELE CONVERTER TC-1401

评测依据

• review_count：1500
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[2000,4999]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:42:38","to":"2026-06-26 02:42:38"}
• intros：{"brand_intro":"适马（Sigma）成立于1961年，是日本知名第三方镜头制造商，以高性价比和创新技术著称。其Art、Contemporary和Sports三大产品线覆盖从广角到超长焦的广泛领域。适马增距镜专为自家镜头系统设计，在保持画质的同时提供更经济的焦段扩展方案。","product_intro":"适马TELE CONVERTER TC-1401增距镜专为适马SA卡口和佳能EF卡口镜头设计，可将焦距延长1.4倍。采用4组7片光学结构，包含1片非球面镜片和1片SLD特殊低色散镜片，有效抑制色差。支持与适马Sports系列长焦镜头（如150-600mm f/5-6.3 DG OS HSM）配合使用，保持自动对焦和防抖功能。","key_specs":["倍率：1.4x","卡口：适马SA/佳能EF/尼康F（需对应版本）","镜片结构：4组7片（含1片非球面镜片、1片SLD镜片）","最大光圈损失：1档","尺寸：约68.5×24.5mm","重量：约190g"]}
• alt_products：[{"product_name":"适马 TELE CONVERTER TC-1401","brand":"适马","model":"TC-1401","price":2599},{"product_name":"尼康 Z 增距镜 TC-1.4x","brand":"尼康","model":"TC-1.4x","price":3799},{"product_name":"佳能 RF 1.4x 增倍镜","brand":"佳能","model":"RF 1.4x","price":3999}]
• kol_quotes：["@摄影器材控：TC-1401让适马150-600mm变成210-840mm，打鸟入门神器。","@镜头评测室：适马增倍镜的画质表现对得起它的价格。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":84.1,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户认为该增倍镜性价比突出，与适马150-600mm Sports镜头搭配时画质可接受，对焦速度在光线充足时表现良好。部分用户反映在暗光环境下对焦犹豫，且与部分老款镜头兼容性一般。整体评价正面，被认为是入门长焦摄影的经济之选。天猫好评率约93%。","source_count":0}},{"source":"objective","score":84.94300266755585,"weight":0.5,"confidence":0.5,"details":{"rating_avg":4.5,"price":2599,"wom_score":84.1}},{"source":"user_review","score":90,"weight":0.15,"confidence":1,"details":{"rating_avg":4.5,"review_count":1500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@摄影器材控：TC-1401让适马150-600mm变成210-840mm，打鸟入门神器。","@镜头评测室：适马增倍镜的画质表现对得起它的价格。"]}}]
• method_version：v2
• search_visual：null