Désolé helisud, j'oublie à chaque fois.

1.
1/60 second ===> 0.01667 second
ISO Speed Ratings = 400
Aperture = ƒ/18
Focal Length = 100/1 mm ===> 100 mm

2.
1/60 second ===> 0.01667 second
Lens F-Number / F-Stop = 71/10 ===> ƒ/7.1
ISO Speed Ratings = 400
Aperture = ƒ/7.1
Focal Length = 100/1 mm ===> 100 mm