40mm

canon 50mm 1.8 or 40mm 2.8 Recently I got EOS 700D with 18-55 lens. Aperture only 3.5 to 5.6. this is not good for night shoot. I need some wide aperture lens and want to choose between Canon EF 50mm f/1.8 STM and Canon EF 40mm f/2.8 STM Lens. So friends, please let me know what should be...