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Thinking of Moving from APSC to M43

Started Sep 27, 2016 | Discussions thread
daddyo Forum Pro • Posts: 12,670
Jonathan...
6

I am not trying to turn this post into an 'equivalence' war, but your statements about APS-C vs M4/3's 'lens speed' is patently incorrect and misleading. An f/4 aperture on an APS-C sensor is exactly 1 stop slower than an f/2.8 aperture on m4/3's. The Depth of Field at those apertures is roughly the same -- but in regard to lens speed, they are not the same.

I cannot understand for the life of me why this concept is so hard to grasp. Total light required by a given sensor size has no effect on exposure values. If it did, every light meter made would have to have a setting to input sensor size prior to taking a reading.

My E-M1 at ISO 200 and f/2.8 in a given lighting situation will require the exact same shutter speed as an APS-C sensor camera or a 35mm FF camera at those settings in the same light.

I won't post any further about this on this thread out of respect to the OP, but wanted to make sure the air was clear.

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God Bless,
Greg
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