It's very simple and no technical talk: go to a dark place (a church for example, or when night) select an object that you perceive only and this whatever your goal targeting, click (yes!) without flash and see the result. You will understand how the sensor K5 is fantastic! I let you imagine the photographic possibilities (but also video) available to you when you with this device in your hands. One regret: that he did not swivel screen, a practice I think, in many respects, such as the Canon D60. But jewelry set an objective for example 18/250 (or another brand Pentax-compatible) will make more of a happy amateur ...