This is a CONTAX RTS. While CONTAX products with electronic controls, not just the RTS, can become unstable after 30-40 years, this one is fully functional despite some scratches and dirt. Released in 1975 (Showa 50). RTS stands for Real Time System, and as the concept "shoot seamlessly when you want to shoot" suggests, the release response is very light. It doesn't require the typical method of pressing slightly for AF and exposure, and then pressing further for release. Instead, the electronic control allows for immediate release with just a light press of the release button, resulting in a near-zero release time lag. ＜Condition＞ ・Appearance It has some scratches and minor dents, but no major noticeable damage. The lighting has been adjusted to show even small scratches, so please check the images carefully. ・Optical Viewfinder There are fine dust particles, but no mold or clouding, and it did not impair visibility. ・Operational Check I have tested the camera by running a film through it once. Please refer to sample images 15, 16, and 17 taken with a Planar 50mm f/1.4 lens. ・Stored in an electronic dehumidifying cabinet. No pet or tobacco odors. ＜Included Items＞ Everything shown in image 1. Camera body (batteries not included, please provide your own) Lens mount cap Original eyecup (the hard rubber part is slightly deformed) ＜Operation＞ ・Shutter: ○ ・Film advance: ○ ・Self-timer: ○ Other features... Operation confirmed