Once again I read a review of a new camera with great high ISO. Stick it in front of a well illuminated target and wind up the ISO..oh look a great picture at 25600 ISO or whatever.Now that might be usefull if you photograph birds and need to wind up the ISO in daylight to raise the shutter speed but is it a helpfull test ? What I do is go into a 13th century church lit with 5 watt low engergy bulbs and small windows with dense stained glass. No flash just enough light to read a bible with the aid of the lectern light and I take pictures. about iso 6400 is your limit. So lets see some sensible iso tests where they reduce the light to push the iso up. Black suited people of course to test the noise in the "Shaddows" and a bird all in white for tonal range. The only usefull figures are DXO to compare cameras. Anybody agree?