Used. Works. Don't know accuracy, exactly how to make it work. Has a battery in it and when you turn it on the light meter moves based upon brightness of subject. Do not know how to use it nor do I know how to check for accuracy. It comes with the battery. Some corrosion on the battery did not remove. Even with the corrosion, it seem to work.
The Vintage Kobayashi Seiki Seisakujo Kopil Cds TTL Exposure Meter from Japan is a high-quality and compact light meter designed for photography enthusiasts. With settings ranging from 6 to 1600 and shutter speeds from 1/1000s to 60s, this meter provides accurate measurements to ensure proper exposure for your photos. Weighing only 8 ounces, this meter is lightweight and easy to carry around for on-the-go photography. Perfect for vintage camera enthusiasts, this Kopil Cds TTL Meter is a reliable and essential tool for capturing the perfect shot.