Why EVF will never replace OVF for me

Started Jan 14, 2014 | Discussions thread
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(unknown member) OP Senior Member • Posts: 1,324
science, math, disprove?
1

let's go the mathematical way then. The EVF has to have a refresh rate of at least 1/24, right? Because the same EVF is used for video in the cameras that have EVF. So the maximum exposure it can get is 1/24s, ISO X, f/X, right? If you take the exposure from my test above, f/1.4 iso 3200 10s, at 1/25s you'd need 30/2^8.5 = 3200 * 2^8.5 ISO 1,158,523 to achieve the same exposure at 1/30.

That's fairly simple math. Can you disprove it?

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