The Canonet G-III, popular for its 118mm width, is almost the same size, but the Datematic is lightweight and nimble at 440g compared to the hefty 620g metal G-III. The shutter is a Seiko ESF, familiar from the Hi-Matic E and Canon Date E, and is known for its sharp bokeh. The lens is also the same 40mm F2.8, 4-group, 5-element lens as the Canon Date E, often called Canon's staple lens, and is highly regarded for its image quality. The viewfinder is easy to see with a high-quality bright frame. This camera is a coupled rangefinder program EE camera, but can be used from a very dark EV1 (4 seconds at f/2.8) (G-III is EV3.8~). [Appearance] The top cover, which looks like metal, is reinforced plastic. There are no dents or scratches. The covering is also intact with no tears. There is a very small black spot at the bottom of the front nameplate, but it is not noticeable. [Optics] The lens is clear to the eye (7th image). Upon close inspection, there is some dirt and dust around the middle element, but it is at a level that does not affect the image quality. The viewfinder is clear and the frame is sharp (10th image). The yellow double image rangefinder is easy to match, and the distance measurement is almost accurate, with infinity focus achieved. [Operation] LR44 batteries can be used via an adapter. There is no corrosion or leakage in the battery chamber (image 11). Pressing the red button next to the eyepiece lights the red lamp on the top of the camera and the orange lamp in the viewfinder, allowing for a battery check (images 9, 10). The date imprint position and on/off status can also be confirmed in the viewfinder. When the shutter button is pressed (the long stroke is a specification), the lamp will stay lit if the exposure is insufficient, alerting the user. Although the accuracy is unknown, the aperture and shutter speed change depending on the brightness of the subject. The test shots with film also came out beautifully (12th image onwards). There is no light leak and the light seals are fine. The round bench is in focus at 2.5m, the playground equipment at 7m, and everything else was shot at infinity focus. The resolution and color are amazing. The flash firing via the hot shoe and the self-timer function worked. Unfortunately, the date imprint function is not working (likely a burned-out bulb). Accessories include only an aftermarket lens cap. For Canon fans looking for a well-performing rangefinder camera, how about this for practical use? Due to the malfunctioning date function, it is offered at a reduced price. *Released in 1974. Although the operation has been checked, please refrain from purchasing if you are overly concerned about details.*