1. Regular In-house Audit The Company regularly holds in-house audit to ensure security of personal information handling. 2. Minimization and Training of Personal Information Handling Employees The Company designates a number of employees for handling personal information and taking control measures and keeps that number to a minimum. 3. Establishment and Execution of Internal Management Plan The Company establishes and executes the internal management plan for securing personal information processing. 4. Technical Measures against Hacking, etc. The Company regularly updates and inspects security software to prevent leakage of or damage to personal information by hacking or viruses. The data storage systems are installed in areas with limited access from the outside and are under physical and technical surveillance and monitoring. 5. Storage and Tampering Prevention of Access Logs The Company stores and manages the logs of access to the personal information processing system for at least six months and have security features in place to prevent the access logs from being tampered with, stolen, or lost. 6. Restricted Access to Personal Information The Company takes necessary measures such as authorizing, changing, and canceling access to the personal information database to restrict access to personal information and deploys an intrusion protection system to prevent any unauthorized access from the outside. 7. Use of Locking Device for Document Security The Company keeps paper materials, secondary storage media, etc. containing personal information in secure places with locking devices. 8. Restricted Access for Unauthorized Personnel The Company has set up separate physical storage facilities for the personal information system that stores personal information and implemented and operates access control procedures for the facilities.

Focal length

What is the angular field of view of a camera which uses a 50 mm focal length lens to form an image on a section of film of length 35 mm?

A simple lens can be used to form an image on the film plane of a camera. The lens has to be positioned at the correct distance from the film so that the image does fall on the film rather than in front of it or behind it. When you (or the auto-focus mechanism) focus the camera, you are ensuring that the real image formed by the lens is on the film plane. If the object is a very long way away, the image will be formed very close to the focal plane of the lens. The magnification of the image is then

For conventional "35 mm" cameras, a lens of 50 mm focal length is often the standard lens, a lens of 28 mm focal length is a wide-angle lens, and a lens of 300 mm focal length gives a larger image of a distant object.