4 ms·

I'd be interested in seeing substantiation of this claim. I can't think of why mirrorless cameras would have more noise.

• radlad 4y ago
  Here's something I found: https://www.dpreview.com/forums/post/57249761 https://www.dpreview.com/forums/post/57249761 It basically seems to come down to the fact that with DSLR you can disable Live View, therefore keeping the sensor cool until you take your exposure. I expect then that a camera like the X100V or X-Pro3 - both of which are mirrorless cameras that also have an OVF - would have the same advantage as a DSLR.
  • _ph_ 4y ago
    The argument has been made often. Yes, noise raises with sensor temperature. But I haven't seen a test which shows that it makes any difference in real-life situations.
  • kllrnohj 4y ago
    > therefore keeping the sensor cool until you take your exposure. That'd only be true if the sensor is a significant heat source that's unable to dissipate that heat adequately. Which... I can't think of any reason that would be inherently true. The ISP generates some decent heat, which is why many cameras have limits on how long you can record 4k video. But does the cmos sensor? Especially when you're talking full-frame, the energy density seems like it'd be pretty tame. If it's not meaningfully rising above ambient temperature, then there's no reason a DSL sensor would be cooler & therefore less noisy.