I recently bought a Yongnuo 50mm for my Canon 5D MkIII. I'm having problems adjusting the aperture, it seems like it always shoots at ƒ/1.8.
I adjust the aperture in the camera up to ƒ/22 but it doesn't seem to take any effect on the lens. In the live view mode the image gets darker, but when I shoot the picture has exactly the same light as if I shoot at ƒ/1.8.
I'm wondering if this is a common issue on the lens or if maybe I'm doing something wrong or something else needs to be done (I'm really just checking with you guys before sending the lens back).