The first medium format camera I used for professional work was a Koni-Omega Rapid. I loved the camera. Interchangeable lenses, interchangeable backs, fast to use. The first aerial work I ever did was with that camera. The only problem we ever had was with the backs and the film advance mechanism. Easy to get fixed at that time because they were still in production. Today?? If they need parts?? Lenses were sharp with good contrast. If the camera is in working condition, lenses are okay, and the whole thing is not too expensive, it might be worth a go as they certainly were capable of taking good photos.