Quoted By:
All these people who actually believe that M4/3 is incapable of taking pictures in low light.
I would argue that it is the other way around, if you are shooting thinks that don't run around at high speed.
Lets say you have a 35mm f/2 lens on a 5D Mark III. And a 17mm f/2 lens on an E-M5 Mark II.
The light in the room results in a 1/10th shutter speed at ISO 1600 at f/4 on the 5D Mark III. You cannot open the aperture any wider because you want the depth of field of f/4. Really, you think f/5.6 or f/8 would be ideal, but you compromise. Since neither the lens or the body have IS, you need to bump the ISO to 6400 to get a 1/40th shutter speed, fast enough to hand hold at 35mm if you have decent hands. So here we are. ISO 6400, f/4 (compromise aperture), and you get the shot. Looks okay. Will need to work on the Canon noise in post, though.
Now the E-M5 Mark II. 17mm f/2, ISO 1600, f/4, resulting in the same shutter speed of 1/10th. But hey. Since you get more depth of field on M4/3, you can open up to f/2.8 and still get that 'ideal' depth of field that you wanted on the 5DIII, but did not want to bump the ISO more to get. So now we are at f/2.8, ISO 1600, 1/20th. But wait. This body has a five stop in body stabilization system. We need an equivalent shutter speed of 1/40th to be hand holdable... So, 1/40th minus 5 stops of exposure is 0.8 seconds. So we can lower the ISO until we get to that exposure... Drop to ISO 800, and we are at 1/10th. ISO 400 and we are at 1/5th. ISO 200 we are at 0.4 seconds. Since ISO 200 is base ISO, we need not go any lower. So here we are. ISO 200 (base ISO), f/2.8 (ideal aperture for desired depth of field), and 0.4 second shutter speed, fast enough to hand hold thanks to the in body IS. Snap. Wow. Base ISO with Olympus glass. Such sharpness. Such clarity. No need to mess with noise sliders in post. No need to sharpen in post. All this without a tripod, in a smaller, cheaper camera.
