Standard: 600x400 pixels @ 72dpi

Panorama: 750x300 pixels @ 72dpi

Standard: 10x15cm (6x4 inches) @ 300dpi

Stock images for print use medium.
Standard: 16x24cm (6x9 inches) @ 300dpi

Panorama: 16x40cm (6x15 inches) @ 300dpi

Standard: 20x40cm (8x12 inches) @ 300dpi

Panorama: 20x50cm (8x20 inches) @ 300dpi

Standard: 30x45cm (12x18 inches) @ 300dpi

Panorama: 30x75cm (12x30 inches) @ 300dpi

(not all panoramas available in this size)