A joyful elderly man engrossed in a video game, his face lit up with excitement and satisfaction. The image should capture the vibrant energy and youthful spirit of the subject, contrasting with his age. Use a Canon EOS 5D Mark IV DSLR camera with an EF 50mm f/1.8 STM lens to capture this intimate portrait. The time of day should be late afternoon, with soft, warm light filtering in through a nearby window. The style of the photograph should be candid and natural, capturing the man's genuine happiness. Use a Kodak Portra 400 film to capture rich, natural colors and fine grain. The camera settings should be f/2.8, ISO 100, and shutter speed 1/125 to create a shallow depth of field and freeze the moment. In post-processing, enhance the warm tones and increase the contrast slightly to emphasize the man's expressions.