Is there a huge difference between Yongnuo 50mm and Canon 50mm 1.8 II ? I want to buy the canon lenses but here in my country they're out of stock, and I can't find one at a good price. On some second-hand sites they're too expensive.. Then I found the Yongnuo lenses on Ebay. Is it worth it? And I'm very curious, does the bokeh effect still look the same?