The main objective of this paper is to investigate the effect of atomization quality on the lean blowout (LBO) limits and flame lift-off conditions of a swirl stabilized burner under different air flow operating conditions. Two simplex atomizers of different geometrical parameters are chosen to represent different atomization quality of the injector. Combustion experiments are conducted using Jet-A fuel in the swirl stabilized burner to measure the LBO limits. The atomizer with better atomization quality (K-0.252) shows wider LBO limits at all air flow operating conditions. Flame images are captured at different equivalence ratio (Ф) conditions through the exit of a swirl stabilized burner. Images are processed in RGB format and non-dimensional values of average blue, green and red intensities of the flame images are plotted against equivalence ratios. The average blue intensity initially decreases up to a certain value of equivalence ratio (termed as transition equivalence ratio) and then increases until blowout. After this transition equivalence ratio, significant changes in the colour and features of the flame are observed. This transition equivalence ratio obtained from blue intensity plot is assumed to be the lift-off equivalence ratio of the flame. Atomization quality of burner is found to strongly affect the LBO limits and the lift-off conditions of the flame.