230mm

230mm is a measurement of length equal to 230 millimeters, or approximately 9.06 inches. This unit of measurement is commonly used in various fields for precise measurements and specifications.

In the context of artillery, 230mm refers to the bore diameter of certain guns. For example, the Soviet Union's 230 mm howitzer M-30 was a heavy artillery piece used during World War II. This weapon was notable for its long range and destructive power, making it a significant asset in the battlefield.

In the field of photography, 230mm is the focal length of certain lenses, such as the Canon EF 230mm f/2.8L IS USM, which is known for its sharpness and image stabilization features. This lens is often used for portrait photography and wildlife photography due to its ability to capture subjects at a close distance.

In the realm of electronics, 230mm is the width of certain components, such as the 230mm rack mount server, which is a standard size for server enclosures used in data centers.

In summary, 230mm is a versatile measurement used in various fields, from artillery to photography and electronics. Its precise nature makes it an important unit of measurement in many industries.