Originally posted by ogl SNR18% - higher is better

ISO80

K-5II - 41.7 dB

K-5IIs - 42 dB

ISO 100

K-5II - 40.8 dB

K-5IIs - 41 dB

ISO200

K-5II - 38 dB

K-5IIs - 38.1 dB

ISO 400

K-5II - 35.1 dB

K-5IIs - 35.2 dB

ISO800

K-5II - 32 dB

K-5IIs - 32.2 dB

ISO1600

K-5II - 27.6 dB

K-5IIs - 27.7 dB

Let's compare ISO manufacturer / measured

ISO80

K-5II/K-5IIs - 68/70

ISO100

K-5II/K-5IIs - 85/91

ISO200

K-5II/K-5IIs - 179/173

ISO400

K-5II/K-5IIs - 360/347

ISO800

K-5II/K-5IIs - 744/723

ISO1600

K-5II/K-5IIs - 1514/1426

ISO3200

K-5II/K-5IIs - 2482/2877

ISO6400

K-5II/K-5IIs - 5145/5970

Rather strange situation with ISO - K-5IIs has closer to nominal ISO at 80-100 and 3200-6400 (and e t.c.)

That is most interesting ogl

Thanks for posting this.

My prediction is that the added sharpness of the K-5 IIs will prove beneficial up-to a certain point along the sensitivity curve, at which point, the effects of noise may have an inverse effect on IQ.

OR WILL IT?

I guess there's only one way to find out.

I'll run a few tests today to see what comes out of it.