For beginners who want to have it as low as possible: Over here you can not go wrong when a material and the noise does not bother, and you just want to have a fast lens
BUT:
Someone a little emphasis on how the lens touches as it sounds and how it is processed further should rather save a little and buy a little higher quality.
The 3 star correspond to a subjective evaluation on my part, I have returned it easy to handle for me is not fit and I absolutely did not like the feel
Toll is anyway, just not for me