Fuji x20 v Sony rx100

Started 4 months ago | Discussion thread
Ray Sachs
Senior MemberPosts: 7,260
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Re: I've owned both
In reply to marike6, 4 months ago

marike6 wrote:

Ray Sachs wrote:

* Low light at the wide end of the lens. I'd say the RX100's sensor is a stop to a stop and a half better than the X10 and the lens is faster at 28mm as well.

This is just not true, even with the faster f1.8 lens (the Fuji has an f2 lens at the wide end). If you go by DxOMark tests of both cameras, for Low-Light ISO (sports) Score:

  • RX100 - 390 ISO
  • X10 - 245 ISO

A 1 stop advantage in high ISO performance, as Ray estimates, would be a 490 ISO score for the RX100, which it clearly did not achieve. I actually only has less than 1/2 EV better high ISO performance.

I can't argue with the numbers, but in real world use - street shooting in marginal to low light - I found the RX100 considerably more useful at keeping the shutter speed up, the aperture small enough for zone focus, and ISO up. It felt like a stop or more in practice. I didn't like the RX100 much, but in low light at the wide end, I thought it was pretty amazing for a compact. 
-Ray
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