Adobe DNG Converter 

Adobe DNG Converter is an easy RAW image file with JPG, JPEG or TIFF formats converting tool. This is a free utility that converts files from more than 350 cameras to DNG like support Samsung, Panasonic, Nikon, Sigma, Ricoh, Canon, Leica etc for use in Adobe Photoshop, Adobe Photoshop Lightroom, Adobe Bridge, After Effects etc.

More info and free download- https://goo.gl/NK15bz