Tamron 70-200 g2 at 200mm

I love this photo because of how the light hits the mountain, like a discreet line, just where the ballon is. The hill in the front is a darker grey, because the light doesn't hit it as much as the mountain behind it; and that is why the mountain is a lighter grey. All of this looks good in black and white because you get different shades of grey: from dark to light.