Capture a close-up image of a person holding a smartphone displaying a QR code, with a blurred QR code background, using a DSLR camera at f/2.8 aperture, ISO 100, and shutter speed of 1/125 sec, in portrait mode and soft lighting to enhance image quality.

Generate a high-resolution QR code image with a clean design, using a Canon EOS 5D Mark IV, aperture f/8, ISO 100, 50mm lens, top-down view, in a minimalist style and well-lit background.

Generate a high-resolution QR code with a clean black and white design, focus on sharpness, ISO 100, aperture f/8, 35mm lens, shot from a straight-on perspective using a digital SLR camera.

Create a digital illustration of a smartphone displaying a COVID-19 vaccination certificate with a syringe icon and a QR code, use a bright yellow background, simulate a DSLR camera shot with a focal length of 50mm, aperture set to f/1.8, and natural lighting for enhanced image quality.

Generate a high-resolution QR code with a clean black and white design, focus on sharpness, ISO 100, aperture f/8, 35mm lens, shot from a straight-on perspective using a digital SLR camera.

Capture a close-up image of a person holding a smartphone displaying a QR code, with a blurred QR code background, using a DSLR camera at f/2.8 aperture, ISO 100, and shutter speed of 1/125 sec, in portrait mode and soft lighting to enhance image quality.

Generate a high-resolution QR code image with a clean design, using a Canon EOS 5D Mark IV, aperture f/8, ISO 100, 50mm lens, top-down view, in a minimalist style and well-lit background.