Full Frame vs Micro 4:3

Started 3 months ago | Discussions thread
saltydogstudios Senior Member • Posts: 2,392
Wrong Settings in Comparison

FingerPainter wrote:

Michael Piziak wrote:

I viewed this 2018 video, to get a perspective of how much smaller the Olympus cameras are than other cameras... The video actually compares the micro 4:3 to a full frame camera when it comes to image quality.

Any comparison that claims to see no difference when it doesn't examine prints of the same scene shot under the same conditions is bogus.

Fortunately, there is a tool right here on DPR that lets you compare like to like: the Studio Scene Comparison Tool.

Are you claiming you cannot see the difference between the E-MI II and the 5DIV in these shots?

The top pair of shots reflects the ISO settings that the video's host probably used in his shots: base ISO on each camera. The bottom post shows the difference when low light has forced an increase in ISO setting.

You're assuming the same f/stop on the lens.

If you really want to compare apples to apples you have to remember that depth of field changes on each sensor - assuming you want to keep an equivalent field of view etc.

35mm f/2.8 on full frame

17mm f/1.4 on micro four thirds

Then you get roughly the same framing, angle of view, depth of field, etc.

Therefore the micro four thirds camera should be at ISO 800.

The advantage of full frame isn't less noise at the same ISO, it's that you can get plenty of lenses that open to f/1.4, which would require an f/0.7 lens on micro four thirds to keep up with.

You can keep the ISO constant then you're no longer have "the same scene shot under the same conditions" - well I suppose it could be the same scene, same conditions - just with very different depth of field or shutter speed.

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