17mm – 25mm equiv.
used the finger and thumb technique to judge where to attain 90 degree from the brightest light source in the area with the pillar as the focal point.
focused on the pillar in aperture priority mode at f2.8. then, switched to manual mode and changed to f13.
corrected for barrel distortion using lens profile and flattened out histogram in photoshop both in raw then in jpg.
same image without edit: