Chrome plating steel case and ring, glass lens, brass internal and connection, Chrome plating brass joint.

电镀铁壳，电镀铁圈，玻璃面，铜机芯，铜管子。电镀铜接头。

youdao

Black steel case, black stack steel ring, glass lens, brass internal and connection, stainless steel joint.

黑铁壳，黑铁圈，玻璃面，铜机芯，铜管子，不锈钢接头。

youdao

Stainless steel case and ring, glass lens, stainless steel internal, connection and joint, ammonia pressure gauge.

不锈钢壳，不锈钢压圈，玻璃面，不锈钢机芯，不锈钢管子，不锈钢接头。

youdao

I turned on a strong light under the glass and looked through the diamond lens.

VOA: special.2011.06.25

The earliest versions were simply glass lens fitted into a tube.

FORBES

With three glass lens elements in three groups, it can be used as a wide-angle lens equivalent with a single focal length of 30mm (35mm camera equivalent).

ENGADGET: Olympus E-PL5 and E-PM2: Micro Four Thirds cameras with OM-D-like focusing, performance boosts (hands-on)

With the addition of a reinforced, glass lens cover, the EX-G1 is tooled with a multi coating that is water-repellent and prevents light reflection from ruining pictures.

ENGADGET: Casio trots out world's slimmest shock-resistant digicam: EX-G1 (video)