Nostalgic Zenit Neck Camera in Mono

Create a moody monochrome image of a vintage Zenit camera hanging from a weathered leather strap around a person's neck. The camera should be the focal point, slightly off-center, with a shallow depth of field that keeps the camera in sharp focus while the background softly blurs into grayscale. Use high-contrast black-and-white tones, visible film grain, and subtle scratches or dust on the camera body to evoke nostalgia. Add a gentle vignette and soft natural lighting from a nearby window to create delicate highlights on metal and leather, emphasizing textures and a timeless, memory-filled atmosphere.