Instead of spending several hundred or even a thousand euros for a good telephoto, I bought for my EOS 70D EF-S 55-250 IS STM Canon. This includes up to the widespread kit lens at (18-55mm). Despite the low price to me so far nothing serious negative noticed. Well, the light intensity is higher on more expensive lenses, but then also cost at least twice. As with all STM lenses also has the EF-S 55-250 IS STM a fast and super-quiet autofocus, even with video recordings. Keep distortions is very limited, probably only for true professionals interesting, but also are then willing to pay up to ten times for a lens. From me as ambitious photographer there anyway we can highly recommend!
