PetaPixel has posted a comparison between the Canon EF 50mm f/1.8 and the obvious clone the Yongnuo 50mm f/1.8. One of these lenses rentals for about $100, the other for $40 via ebay (though prices have risen with all the press its getting).
“All in all, I’ve gotten some marked differences between the two shot under exact circumstances. Today’s tests aren’t anything fancy, and not the “hands-on, on set scenario” that I like, but they do give some input, so I thought I’d share. And I will go so far as to say the Yongnuo is aesthetically the better lens.”
*image credit // PetaPixel.com