[開箱] 鏡頭沒接環膠圈? 那自己裝【O-ring】
好讀網頁版
http://www.mobile01.com/topicdetail.php?f=164&t=4989844
部分高階鏡,會有接環膠圈
多少能增加些防塵防滲能力
不過個人因為預算的關係
大多與高階鏡頭無緣 XD
個人的鏡頭,大多是裸露接環狀態
於是,查了一下是否有前人想用膠圈包覆
還真的有,而且還有提供尺寸 外徑2.25" 切面1/16"
(因為是外國人 所以慣用"這單位)
所以就照本宣科,找尋類似尺寸的O-ring
外徑約57.15mm 切面約4.77mm
最後找到接近的尺寸是57.65 X 5.33mm
先出點力套在鏡身上
然後接上機身
再把O-ring退回接環處
優點就是讓金屬接環處強化防塵防滲能力
不過也有些小缺點,一是拆換鏡頭會麻煩點
二來是純手動鏡,若尾端為光圈環,會套緊而難以轉動
但綜觀來看,個人認為是利大於弊的小配件
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