At 670g, the Sigma 50mm F1.4 DG DN Art isn’t massively heavier and boasts a faster f/1.4 aperture. Sigma has an illustrious history of great nifty fifties but this one is our favorite to date.
A 27mm APS-C lens has an effective focal length of 40.5mm when the 1.5x multiplier is taken into account, so in practical terms it sits somewhere between a 35mm wide lens and a nifty fifty ...