{"rewrite":{"id":"r_d68caa924f6fae9a427c2fff","clusterId":"c_6a2540d8926f11f80beb16b4","slug":"sony-announces-400mm-f4-5-and-600mm-f6-3-g-master-lenses-under-1000g","model":"deepseek-v4-1-flash","headline":"Sony Announces 400mm F4.5 and 600mm F6.3 G Master Lenses Under 1000g","summary":"Sony announced two E-mount super-telephoto primes for 35mm full-frame bodies: the FE 400mm F4.5 GM OSS and the FE 600mm F6.3 GM OSS. Sony lists the 400mm at about 994g and the 600mm at about 995g, both under 1000g, with the optics and weight moved toward the camera body. Orders open September 29 at 10:00, and both are scheduled to go on sale October 9.","whyItMatters":"Super-telephoto primes have carried a weight penalty that has kept them on tripods and off long handheld shoots, so two G Master primes this light change what the format asks of the people carrying them.","webCardHtml":"\u003cp\u003eThe two lenses share a 95mm filter thread and a minimum focusing distance of 2.5m, and both take the SEL14TC and SEL20TC teleconverters. Sony lists the 400mm at 16 elements in 22 groups and the 600mm at 24 elements in 17 groups, using three Super ED and one ED element to hold down chromatic aberration. Each carries two XD linear motors, internal focusing, optical stabilization with three modes, and a fluorine coating on the front element.\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eFE 400mm F4.5 GM OSS (SEL400F45GM)\u003c/strong\u003e: About 994g; open price, estimated around 500,000 yen; 16 groups, 22 elements\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eFE 600mm F6.3 GM OSS (SEL600F63GM)\u003c/strong\u003e: About 995g; open price, estimated around 700,000 yen; 17 groups, 24 elements\u003c/li\u003e\u003c/ul\u003e","blueskyPost":"Sony announced the FE 400mm F4.5 and FE 600mm F6.3 G Master primes, listed at about 994g and 995g. Both go on sale October 9, with orders opening September 29 at 10:00.","twitterPost":"Sony announced the FE 400mm F4.5 and FE 600mm F6.3 G Master primes, listed at about 994g and 995g. Sale date is October 9, orders open September 29 at 10:00.","threadsPost":null,"newsletterBlurb":"Sony announced two super-telephoto primes for E-mount full-frame bodies. The FE 400mm F4.5 GM OSS is listed at about 994g and the FE 600mm F6.3 GM OSS at about 995g. Both are scheduled to go on sale October 9, with orders opening September 29 at 10:00.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/434/4434044/?rss\",\"title\":\"ソニーがGレンズなのに1000gを切る世界最軽量の超望遠単焦点レンズ「400mm F4.5」と「600mm F6.3」を発表\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":6234,"outputTokens":747,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1789487960,"createdAt":"2026-09-15T15:54:01.000Z","publishedAt":"2026-09-15T15:58:20.000Z","updatedAt":"2026-09-15T15:58:20.000Z"},"cluster":{"id":"c_6a2540d8926f11f80beb16b4","canonicalTitle":"ソニーがGレンズなのに1000gを切る世界最軽量の超望遠単焦点レンズ「400mm F4.5」と「600mm F6.3」を発表","representativeArticleId":"a_9dcb38cb8358507d163f37ed","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"announcement\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-15T15:01:00.000Z","lastSeenAt":"2026-09-15T15:01:00.000Z","updatedAt":"2026-09-15T15:58:20.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/434/4434044/?rss","title":"ソニーがGレンズなのに1000gを切る世界最軽量の超望遠単焦点レンズ「400mm F4.5」と「600mm F6.3」を発表"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"announcement","domain":"other","is_roundup":false},"keyFacts":null}