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84 Quick Guide for the Impatient User

Then hit the center button to select. That’s it! The ISO you choose should
be no different than the speed you would choose normally for the ambient
light that you have – for example, choosing ISO would indeed yield the
lowest noise, but if the light is too low for you to handhold your shot, the
camera will be trying to merge twelve blurry, long-exposure images. You
should expect that MFNR will reduce the amount of visible noise by
between two and three stops – that is, MFNR at ISO 800 will produce noise
that is visibly similar to a single shot taken at between ISO 160 and 200.

Figure 3-12: The airplane was actually much darker than this, which made it a
perfect challenge. To get a handheld shot I put the camera into Program mode at
ISO 1600. Then I tried MFNR at the same ISO which took six shots and did a
delightful job at averaging out all the noise. It’s difficult to see the differences
here, but they’re there! This mode produces even better images when used with
a tripod at low ISOs.

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