I am selling this because I no longer have the opportunity to use it. I also have a 52mm mount adapter for a SONY 4K video camera, so if you'd like, I can increase the price and sell them as a set. [Anonymous Delivery Available] For evidence gathering! Amazon Reference Price: 30,800 yen Brand: Cony Electronics Service Focal Length Description: 8mm Lens Type: Telephoto Camera Lens Description: A high-quality pinhole lens for video cameras that allows shooting through a 3mm small hole. It has a 43-degree angle of view and a 37mm filter diameter, and supports close-up shots from 3cm. Although it is a reversed image type, recording in a normal image is possible by turning the camera upside down. It does not impair the original performance and brightness of the camera, and an optional f11mm telephoto lens can also be attached. A high-performance lens suitable for professional evidence gathering, such as for detective work. A high-quality pinhole lens for video cameras that allows shooting through a 3mm small hole. It has a 43-degree angle of view and a 37mm filter diameter, and supports close-up shots from 3cm. Although it is a reversed image type, recording in a normal image is possible by turning the camera upside down. It does not impair the original performance and brightness of the camera, and an optional f11mm telephoto lens can also be attached. A high-performance lens suitable for professional evidence gathering, such as for detective work. Maximum Focal Length: 8 millimeters Lens Design: Single Focal Length [Evidence gathering that utilizes the performance of the video camera] You can gather evidence through a 3mm hole while maintaining the performance of your video camera. Close-up shots are also possible from 3cm! [High Image Quality] Although it is a reversed image type for image quality, the recorded video is a normal image. It works particularly well with the CONY pinhole lens, and the brightness and image quality hardly change even when attached. All camera functions can be utilized. [Easy Installation] If the filter diameter of the video camera's lens is 37mm, the pinhole lens can be easily attached as is. *Conversion rings for each camera are required for other filter diameters. [Specifications] Dimensions: 52 x φ40mm, Weight: Approximately 85g, Image/Angle of View: Reversed image/43 degrees, Connection Screw Diameter: φ37mm (compatible with sizes other than 37mm with a conversion ring) [Brand] Cony Electronics Service is a brand that handles small CCD cameras, recorders, pinhole lenses, and various evidence gathering systems equipped with state-of-the-art high-quality image technology.