How to properly compare RX-100 and NEX-6 kit high ISO noise?

Started Apr 29, 2013 | Discussions thread
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Vlad4D Regular Member • Posts: 219
How to properly compare RX-100 and NEX-6 kit high ISO noise?

There is common opinion that small sensor is bad for low light. But small sensor also allows to use smaller lens with bigger aperture value.

For example maximum aperture on RX-100 at 10mm (28mm equiv.) is F1.8. NEX-6 with kit lens can do only around F4.0 at 19mm (28mm equiv.). It means RX-100 sensor can gets about 2 stops more light than NEX-6 sensor? Am I right?

This means that when we use dpreview ISO comparison tool (and if we want to compare cameras - not just bodies) we have to compare for example NEX-6 ISO6400 to RX-100 ISO1600 and noise amount will look very similar.

If this is true we coming to conclusion that low light capabilities of tiny RX-100 is not worse than NEX-6 with kit lens (at least on 28mm equiv). Am I right?

Guys, if someone have RX-100 and NEX could you please do simple test:

For both cameras:

  • Set focal length to 28mm equiv. (10mm for RX and 19mm for NEX). 
  • Set maximum open aperture. (1.8 for RX and about 4.0 for NEX)
  • Set identical shutter speed (for example 1/30).
  • Set ISO to auto or adjust it for proper exposure. (same brightness on both cameras)
  • Set noise reduction to Low. 
  • Shoot same test scene.
  • Post images into this thread.

Thank you,


 Vlad4D's gear list:Vlad4D's gear list
Sony Alpha NEX-6 Sony E 18-200mm F3.5-6.3 OSS Sony E 50mm F1.8 OSS Sony E 16-50mm F3.5-5.6 PZ OSS Sony E 35mm F1.8 OSS
Sony Alpha NEX-6
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