This is a genuine electronic shutter camera made by Olympus, capable of exposures up to 4 seconds. It's high-performance yet compact, with good focus and is easy to use. There was a model called the 35EC before the 35EC2. The original had issues with overexposure when the battery weakened. The EC2 is an improved version that addresses voltage fluctuations. *The following adjustments and maintenance were performed: Body: Sterilization cleaning. It's clean. Lens: Cleaning. The lens looks clean. Viewfinder: Cleaning. The viewfinder has a wide field of view. The distance pointer doesn't move, but it can be adequately covered by estimation. Electronic Shutter: The yellow warning lamp functions in dark places. Battery Chamber: New LR44 batteries replaced in a custom-made battery spacer. Film Chamber: The deteriorated felt light seals were replaced. (Test Shots) I did test shots with ISO100 Seagull film. The shadows of the house create geometric patterns. The roofs through the spring haze over the trees. I captured a quiet moment. *Negative Service After adjustment and maintenance, I take test shots and check them. I offer the negatives from those test shots to those who want them. This is proof that the adjustments and maintenance were done correctly. *What is included: Camera body, LR44 x 2, battery spacer, skylight filter. *Specifications Lens: E.Zuiko 42mm/F2.8 (5 elements in 4 groups) Shutter Speed: B, 4 seconds - 1/800 second, Program AE SEIKO ESF Exposure Adjustment: Cds electronic program EE, Flashmatic: 1/20 second Focus Adjustment: Zone focusing with a rotating helicoid, 4 zones Battery: HM-N (NR52) type mercury battery x 2 Release Date: 1971 Olympus 35EC2_286