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I can assure you that if I put a 50mm prime on my 5D (full frame) and then on my GH5 (mFT), the 5D focus will roll off noticeably more than the GH5. This is a t

• ivanech 5y ago
  Run that test for real! The GH5 image will be cropped, but the relative amount of blur between your subject and out of focus areas will be identical
  • Forgeties79 5y ago
    Don't take my word for it, check out this piece by Zeiss. https://lenspire.zeiss.com/photo/en/article/making-sense-of-sensors-full-frame-vs-aps-c/ https://lenspire.zeiss.com/photo/en/article/making-sense-of-... >A crop-sensor camera also comes in handy for macro shots. Recall that depth of field (DOF) is the distance between the closest and furthest parts in an image that will appear in focus. At the same aperture and for the same field of view, an APS-C sensor will have a higher depth of field than with a full frame camera.
    • ivanech 5y ago
      Ah okay if you have an f/2 50mm-FOV-equivalent lens (~25mm) on an MFT body and a 50mm f/2 on a full-frame body, yes, there will be more blur because the aperture radius is twice as large on the full-frame lens. I read your comment as saying that the exact same 50mm f/2 lens will produce less blur on an MFT body than on a full-frame body. That'd be a narrower FOV (~100mm equivalent) but the same blur as full frame. Perhaps I misinterpreted?
      • Forgeties79 5y ago
        Larger sensor = an image with a shallower depth of field. That’s all any of us are saying.