create a product shot of a black booklet, with 50 pages. The size of the booklet is 21 x 30 cm, and the style is saddle stitched. The scene is minimal, in a black plain background, the booklet first page is plain black. Display the booklet closed, with the camera view from top, completely pararel from the booklet, on top of gray block, industrial concrete. the scene has a cinematic light, captured by Canon EF 50mm f/1.8 STM Lens, magazine stylist ad.  --ar 4:5