M01的介紹寫是金屬鏡身
https://www.mobile01.com/newsdetail/20910/sony-fe-85mm-f1-8
●外觀介紹
雖然設計概念與去年發表的平價款50mm f/1.8相同,以簡潔洗練的外觀呈現,但50mm f/1.8的鏡身是塑膠製,85mm f/1.8則是金屬。

但是另外查了一些國外介紹因為質量很好,造成誤會是金屬鏡身,其實還是”塑膠鏡身”
https://admiringlight.com/blog/review-sony-fe-85mm-f1-8/
The lens is constructed with a metal lens mount and a plastic exterior, though the smooth finish and tight tolerances make it difficult to distinguish from a metal barreled lens.

但是有的也說鏡筒是金屬材質
https://phillipreeve.net/blog/review-sony-fe-85-mm-1-8/
The build quality of the Sony FE 1.8/85 is surprisingly nice. The outer barrel and the focusing ring are made out of metal. The button, the filter thread and the lens hood are made out of plastic.

請教諸位大大, SEL85F18 ( FE85) 鏡筒材質是金屬或是塑膠 ?
謝謝幫忙