Flash photography one one facet I am challenged by, and it isn't getting any better, as my 5D doesn't have a flash. I usually like to shoot night shots naturally, without any flash, but artificially lit dark scenes, such as a carnival parade, are exceptionally challenging, as dim coloured lights on moving objects result in less than stellar results, as evidenced by IMG 7093. So, I dusted off my 50D, and shot the subsequent carnival parade using the camera flash. After adjusting the settings a bit, I found that using EV -1 worked very well, with saturated colours and underexposing distracting background objects. The exposure time matching the minimum 1/250 sync speed also helped with motion.

File Name                       : IMG_7053.jpeg
Date/Time Original              : 2014:02:23 19:27:03
Camera Model Name               : Canon EOS 50D
Aperture                        : 4.5
Exposure Time                   : 1/250
ISO                             : 800
Measured EV                     : 8.25
Flash Exposure Compensation     : -1/3
Shooting Mode                   : Aperture-priority AE
Metering Mode                   : Evaluative
Focus Mode                      : AI Focus AF
Exposure Compensation           : -1
Lens Model                      : EF40mm f/2.8 STM
Focal Length                    : 40.0 mm (35 mm equivalent: 58.5 mm)
Focus Distance Lower            : 4.26 m
Field Of View                   : 34.2 deg
File Size                       : 357 kB
Image Size                      : 1280x854
Quality                         : Normal
Drive Mode                      : Continuous Shooting
Flash                           : On, Fired
White Balance                   : Auto
Color Temp As Shot              : 6156
Mirror Lockup                   : Disable
Contrast                        : +2
Sharpness                       : 4
Saturation                      : +2
Color Tone                      : +1
Camera Temperature              : 34 C
Serial Number                   : 0320215167