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Should I trade my m43 system for Sony RX-10

Started Apr 10, 2014 | Questions thread
tomtom50 Veteran Member • Posts: 3,244
Re: Not an easy Yes or No . . .

Glen Barrington wrote:

If you look at DPRs reviews of the RX10 that f/2.8 is actually the equivalent of f/7.6 when it hits the sensor.

That is about depth of field. It is not about low light performance. For concert photography depth of field is usually not a concern.

For concert photography it is simple:

  • The m43 sensor is one stop more sensitive than the RX10 (double Dxomark ISO score = one stop)
  • At 40mm the m43 lens is one stop slower than the RX10, you would expect comparable low light performance. The lens and sensor differences cancel.
  • At 150mm the m43 lens is two stops slower than the RX10. The RX10 has a one stop advantage which is significant but not huge.

So overall in the tele range the RX10 has a zero to one stop edge for low light noise.

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