The Pentax K-S1 is a small but versatile DSLR system with a 20MP APS-C sensor. Its body design is based on a standard DSLR concept, with a large grip on the right hand side and a pentaprism optical viewfinder.There are, however, some aspects of the camera that are quite unusual, mainly the use of LEDs to signal settings and functions. These LEDs sit on the front and back of the camera and can, for example, show how many people are included in the face detection function; indicate the choice of photo or video mode with a red or green circle of LEDs on the back; or, quite reasonably, indicate self-timer countdown via bright LEDs on the camera front. Whether these LEDs are helpful or not is up to the photographer; fortunately the LED signals can be deactivated via the menu.While this LED feature can be debated, there are some handling improvements and functions that really are very helpful. The large mode dial on the back, which encircles the 4-way- control field and the illuminated OK button in its center, allows the user to change image modes very quickly and efficiently. Just like all Pentax cameras, the Pentax K-S1 DSLR offers numerous exposure modes. In addition to standards like aperture or shutter speed priority, it offers an additional mode that allows the photographer to choose both parameters manually with the ISO speed setting handled by the automatic exposure system.www.cameraesque.com

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