Olympus OM-D (EM-5) comparison samples are now.. (continued)

Started Mar 17, 2012 | Discussions thread
panos_m Senior Member • Posts: 1,504
Re: Olympus OM-D (EM-5) comparison samples are now.. (continued)

Andy Westlake wrote:

panos_m wrote:

So if I understand it correctly the only two variables that you try to keep constant between cameras tested in your studio setup is the rendered middle gray value of the OOC jpeg at standard settings (factory jpeg settings out of the box) and the manufacturer stated iso.

Or stated a little differently you try to align the exposures between cameras based on the rendered middle gray value of the OOC jpeg at standard settings (factory jpeg settings out of the box) at the manufacturer stated iso.

Am I right?

Yes, in terms of exposure.

We also aim to keep the depth of field as similar as possible, by setting the aperture based on the sensor size and focal length.

Thanks. Do you mind if I recap?

For the manufacturer stated iso.

You keep constant:

  • Middle gray based on OOC jpeg at the manufacturer standard (out of the box) settings.

  • DOF

  • WB

You vary (in order to achieve the exposure which results in the requested grey mentioned above):

  • Light intensity.

  • Shutter speed.

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Panagiotis

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