Should I keep my nifty fifty? Hello, so I’m a beginner at photography and doing it for 6 months now. I have 2 lenses an 18-55mm and 50mm 1.8 prime on a 650d/t4i body. I am planning to buy a 17-50 2.8 to replace my 18-55 but i am confused if i should also sell my 50 1.8 since i think the 17-50mm lens have enough aperture. What do i do? Is it worth it to keep my prime 50mm? …