How about a Nikon d7100 and a forty year old plus, Nikon Nikkor 50mm, F1.8 AI lens? Shoot in Aperture priority mode, since the camera recognizes the lens. Lens can be bought from Japanese camera stores on eBay from $50 on up depending upon the condition but most are pristine. A new d7100 can be bought from B&H Photo $796.95 and used ones any price under. If you decide to move up to a full frame camera, your lens will work. Don't forget that you can buy a new d750 on B&H, with a multi power battery pack, batteries, and 64gb card for $1396.95. Hope some of this helps.