Re: Z8 extremely unreliable/inconsistent AF in mildly low light
I'm a nerd for the scientific method as well.
To be fair, nobody's ever proven that the camera reacts the same way to a mannequin as it reacts to a real person... but then nobody's ever proven that the camera reacts differently. Nobody's ever bothered to do that experiment. Until the we have proof that the models are interchangeable and there is no difference to the camera between them, I'm going to have trouble putting much faith into the mannequin studies as being applicable to real people. To trust the mannequin tests assumptions have to be made that the substitution of one model vs. another does not interfere with the testing.
But that's not even the question that anyone should be spending their time and effort trying to answer. The question that we're really interested in answering is not whether the camera behaves differently on mannequins vs. people. The question remains whether the camera can accurately eye-focus on people in dark conditions such as EV 4.
If someone's going to go to all the trouble of performing detailed tests, I think the highest payback for their effort would be to replicate those conditions in which SCoombs has demonstrated that there is a problem -- with people in a dim but evenly lit room, where the AF software has to sort through a busy scene to identify the subject, then identify the eyes, then focus properly. If we could get several people to perform similar tests in controlled conditions like that, then we might get an interesting answer.
Re: Z8 extremely unreliable/inconsistent AF in mildly low light
I'm a nerd for the scientific method as well.
To be fair, nobody's ever proven that the camera reacts the same way to a mannequin as it reacts to a real person... but then nobody's ever proven that the camera reacts differently. Nobody's ever bothered to do that experiment. Until the we have proof that the models are interchangeable and there is no difference to the camera between them, I'm going to have trouble putting much faith into the mannequin studies. To trust the mannequin tests that fail to show a problem assumptions have to be made that the substitution of one model vs. another does not interfere with the testing.
But that's not even the question that anyone should be spending their time and effort trying to answer. The question that we're really interested in answering is not whether the camera behaves differently on mannequins vs. people. The question remains whether the camera can accurately eye-focus on people in dark conditions such as EV 4.
If someone's going to go to all the trouble of performing detailed tests, I think the highest payback for their effort would be to replicate those conditions in which SCoombs has demonstrated that there is a problem -- with people in a dim but evenly lit room, where the AF software has to sort through a busy scene to identify the subject, then identify the eyes, then focus properly. If we could get several people to perform similar tests in controlled conditions like that, then we might get an interesting answer.
May 05, 2024 at 03:40 PM
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