I needed a quick lens repair for my longer range A7Rii. The range is just great, but the lens only works halfway. I need a minimum aperture for focusing. As soon as I turn it on, the lens really starts howling (yes, howling noises) and there is just NO focusing. The photos look very good. Digital. Very pixelated. I contacted support but the options they gave me didn't work for me. I'm losing money on this lens and unfortunately won't be buying any Samyang or Rokinon products in the future (they're exactly the same, for those who didn't know). I understand that this is a $200 lens, but I still expect it to at least work and do what they say. :( So disappointed.