For this month's challenge, we're going to open it up a bit... We chose a purposely nebulous concept (round) which surely everyone can participate in! Here are some samples to get started...
Let's see what YOU'VE got!M9, ISO 160, Noctilux-M 50mm f/0.95 ASPH, 1/2000s @ f/0.95, ND:
M9, ISO 400, Summilux-M 50mm f/1.4, 1/3000s @ f/1.4:
M9, ISO 400, CV 21mm f/1.8 Ultron, 1/125s @ f/2.8:
M9, ISO 160, CV 21mm f/1.8 Ultron, 1/8s @ f/2.8:
M9, ISO 160, CV 21mm f/1.8 Ultron, 1/250s @ f/8:
M9, ISO 160, Summilux-M 50mm f/1.4 ASPH, 1/3000s @ f/4:
M9, ISO 640, Summicron-M 28mm f/2 ASPH, 1/16s @ f/2:
M9, ISO 640, Summicron-M 28mm f/2 ASPH, 1/60s @ f/2:
M9, ISO 320, Summilux-M 50mm f/1.4 ASPH, 1/1000s @ f/1.4: