Olympus 12-40mm : test par thephoblographer

http://www.thephoblographer.com/2013/09/22/review-olympus-12-40mm-f2-8-micro-four-thirds/

En résumé : "sharp", résistant à l'eau, autofocus très rapide mais le prix très élevé

Spécifications :

Performance
Focal Length	12 – 40 mm Comparable 35mm Focal Length: 24 – 80 mm
Aperture	Maximum: f/2.8 Minimum: f/22
Camera Mount Type	Micro Four Thirds
Format Compatibility	Micro Four Thirds
Angle of View	84° – 30°
Minimum Focus Distance	7.87″ (20 cm)
Magnification	0.3x
Groups/Elements	9/14
Diaphragm Blades	7

Features
Autofocus	Yes

Physical
Filter Thread	Front: 62 mm
Dimensions (DxL)	Approx. 2.75 x 3.31″ (69.9 x 84 mm)
Weight	13.47 oz (382 g)