Using Atomos Ninja-2 Video Hard Disk Recorder with Nikon FF

In Movie Live View, you can adjust your aperture continuously using the DOP and Function buttons in Manual Mode to optimize your histogram. However, as soon as you activate Record to the in-camera memory card, continuous aperture adjustment is disabled. However, if you record the HDMI output directly to an external recorder, the aperture adjustment with the DOP-Functiuon buttons is still functional. Hope this answers your question.

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