My good photographer friend drew my attention to this lens. He allowed me to use his lens to take burst shots of my dog in action. The lens does a great job of focusing on the area you're focusing on and creating an aura against the out-of-focus area. I was supposed to have this lens but didn't want to pay $400 for the Canon brand. I found this one and tried it. Image quality is comparable or the same when only one shot is taken. Where it lags a bit is its autofocus ability and burst mode. And that's why I bought it. While I still have some good photos, there was more blur in burst mode than with a real Canon 85mm lens. It's still a decent lens and I'll keep it to myself due to the price difference, but at the same shutter speed, this lens's autofocus lags a bit in burst mode. Still take some very good photos, especially in single shot mode.
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