1/4000 secs, f/1.2, ISO 400, 50mm
I often end up processing my street photography in black and white. Especially when the composition is centered around a person or is an outright portrait, I find that subjects are likely to be more intense and dramatic in black and white and that the lack of color can make expressions stand out. Besides, with Hong Kong's colorful streets, black and white processing can make other parts of the scene less distracting. And when shooting at high ISO values or when the focus is not spot on, black and white tones tend to be more forgiving. Of course, it's also a subjective call: sometimes a photo just looks better to me without colors.
I have collected a few more recent black and white shots from Hong Kong below the fold. For a fullscreen slideshow of my collection of black and white Hong Kong photos see this set on flickr.
1/6400 secs, f/1.2, ISO 400, 50mm
1/2500 secs, f/1.2, ISO 800, 50mm
1/250s, f/1.4, ISO 1600, 35mm
1/200s, f/2.8, ISO 1000, 35mm
1/8000 secs, f/1.2, ISO 200, 50mm
1/500s, f/1.4, ISO 1600, 35mm
1/1250s, f/1.2, ISO 1600, 50mm