https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
FG50M

FG50M

HK FUGUANG INT''L INDUSTRY LIMITED
Region: China
Update: 11/26/2010
Key Specifications
Model：

FG50M

Focal length：

50mm

Aperture：

1：1.8

Mount：

C

Format：

1/2”、1/2.5”、1/3”

Horizontal field view：

7.3°

Dimension：

Φ33*L43.2mm

M.O.D(m)：

0.5m

Back focal length：

14.8mm

Operation：

Focus

——

Zoom

——

Iris

Manual

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions