see also:
These were all taken with an earlier model of Micro Four Thirds system camera - the Panasonic G3 camera mostly matched with the lovely little Olympus mZD 45mm f/1.8 portrait lens, and I believe were taken with only ambient lighting.
Check out Sean's portfolio on 500px.com (NSFW).
by Sean Archer Panasonic G3 with 20mm lens at f/4.2
Anna by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Xenia by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nika by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nika by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Tanya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Last day of Summer by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadine by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens
Nadya by Sean Archer Panasonic G3 with Olympus mZD 45mm f/1.8 lens