This camera, the ninth in Konica's "Genba Kantoku" (Site Supervisor) series of cameras designed for construction sites, was released in December 1996 and was the first to feature a zoom lens. It has a water resistance rating of JIS Protection Class 7 (immersion-proof), ensuring waterproof performance that is not adversely affected by immersion in up to 1 meter of water for up to 30 minutes. Furthermore, a flat tempered glass is attached to the front of the lens, so it does not affect the refractive index of the lens underwater, allowing for underwater photography, although it is not recommended. According to the specifications, the camera can be washed with water if it gets dirty, but I do not recommend this either, as the change in waterproof performance due to aging is unknown. The camera functions well, but the appearance is not very good as it was used in the field. The body has quite noticeable scratches and dirt. In particular, the white lettering on the operation buttons is half gone. Rubber products are used extensively, especially on the grip, and some parts have become whitish due to hydrolysis. The nameplate cover that was in the center of the top plate is missing, but there is an engraving of "Genba Kantoku Zoom" under the cover, so there is no particular sense of discomfort. Due to its excellent waterproof and dustproof performance, there is no dust or mold visible inside the lens. There is no light seal material used; the light shielding is provided by synthetic rubber waterproof packing. The 2CR5 battery for the main unit is not included. The strap is a Konica genuine product, and although it was dirty, it has been washed, but it shows considerable signs of use. There is no structure for attaching a filter. *Specifications* ● Release: December 1996 ● Film size: 24 x 36mm ● Lens: 28mm F3.5 - 56mm F6.7 ● Shutter: Aperture-priority program electronic shutter (3 seconds - 1/360 second) ● Finder: Real-image zoom finder (0.42x - 0.73x) ● Flash: Guide No. 21 at ISO 100 f=28mm: 0.8m~10m f=56mm: 0.8m~5m ● Waterproof: JIS Protection Class 7 (immersion-proof): Water-washable ● Power: Lithium battery 2CR5 (6V)