Vivitar V3800N Manual SLR Camera with 50mm Lens & Case Quick release K type bayonet mount accepts included multi-coated f/1.7 50mm lens, or any other optional lens conforming to the K mount specification Shutter speeds are set manually from Bulb to 1/2000 Fixed, eye-level pentaprism viewfinder with 92% field of view Viewfinder displays TTL center weighted exposure metering - Red Plus sign means overexposure; Viewfinder employs split image focusing and three LED display