Tsubosaka Electric Co., Ltd. List of Products and Services

It can instantly and quantitatively measure the amount of focus shift due to aperture, not only for fixed lenses and zoom lenses. It can measure the focal length error. By projecting a chart onto the lens and scanning a mirror placed on the image plane up and down, it precisely counts the focus position. With 16 levels of sensitivity adjustment, it has a wide measurement range and supports various types of lenses. It is capable of RS232C communication, making data control via PC easy. Because it provides precise measurement results in a short time, it is extremely valuable not only for development but also for inspection processes on manufacturing lines.

The "LFM-1 Series" is a device that measures lens flare rate (veiling glare index) according to the measurement method specified in ISO 9358:1994. By changing the light source to an IR-LED, it is compatible with lenses that use near-infrared, such as security cameras, smartphones, and in-vehicle cameras. It is capable of measuring veiling glare and image plane illuminance ratio for near-infrared compatible lenses. 【Features】 ■ Measures lens flare rate (veiling glare index) ■ Light source can be changed to near-infrared ■ Can measure near-infrared compatible lenses *For more details, please refer to the PDF document or feel free to contact us.

This device measures the aperture diameter area of cameras and interchangeable lenses. - Aperture diameter at the time of synchronization contact - Maximum aperture diameter at the time of shutter release - Open aperture diameter - Aperture diameter at the timing of the start of aperture operation synchronization It displays the aperture error amount (●EV) compared to the reference diameter as measurement results. The SENS sensitivity, which can be calibrated and registered with a standard lens or reference camera, has four series and supports measurements for zoom lenses and others. The measurement unit can be installed vertically as well as horizontally (the angle position of the display unit can be adjusted). It allows posture difference measurements with two types of optical axes depending on the installation method. Equipped with a communication interface (RS-232C). It enables external output of measurement data and external control of the tester.

The "AFC Series" is used when you want to shorten the actual shooting distance compared to the assumed distance using a lens. It is a device used in situations like "I want to shoot with the focus set at 20m, but I can't secure 20m." 【Features (AFC-500)】 ■ For adjustment and inspection of digital cameras and video cameras ■ Evaluation of resolution for zoom lenses ■ Specifications can be modified to match the user's desired lens from finite to infinite distance ■ Changeable light source (halogen, LED) *For more details, please refer to the PDF document or feel free to contact us.

The "AFC-500" is a collimator for adjusting and inspecting various cameras. It has compact dimensions of 200(W) x 260(H) x 750(D) mm, making it suitable for tabletop use. The light source uses a halogen lamp with dimming functionality. Please use it for evaluating resolution at infinite focus. 【Extended Features】 ■ LED light source, cold cathode fluorescent lamp (CCFL) ■ Focus position: infinite/finite ■ Custom resolution chart *For more details, please refer to the PDF document or feel free to contact us.

Measuring the illuminance of the image plane for various lenses Data acquisition via PC Custom-made lenses for your applications, ranging from DSLR camera lenses to lenses for mobile phones and smartphones.

This is a system that can measure the MTF, which shows the spatial resolution characteristics of a camera, in real-time and simultaneously from multiple directions. It analyzes the input edge images and is suitable for evaluating the resolution characteristics of the entire imaging system, from the lens to the camera's signal processing. It also supports high-resolution images such as 8K and 4K.

This device measures the aperture diameter area of cameras and interchangeable lenses. - Aperture diameter at the time of synchronizing contacts - Maximum aperture diameter at the time of shutter release - Open aperture diameter - Aperture diameter at the start timing of aperture operation synchronization It displays the amount of aperture error (●EV) compared to the reference diameter as measurement results. The SENS sensitivity, which can be calibrated and registered using a standard lens or reference camera, has four series and supports measurements for zoom lenses and others. The measurement unit can be installed both vertically and horizontally (the angle position of the display unit can be adjusted). It allows posture difference measurements with two types of optical axes depending on the installation method. Equipped with a communication interface (RS-232C). It enables external output of measurement data and external control of the tester.