Pentax states that the top ISO rating for the camera's sensor is ISO 819200. To put that in perspective, the full-frame Canon 5D Mark III had a top ISO of 25600, a full five stops less than the Pentax KP.
k-70
Yesterday, Ricoh/Pentax announced an impressive new compact DSLR, the Pentax K-70, with features that compare very favorably with the Nikon...
The quick answer: YES, the Pentax K-70 is less expensive, has some better features, and will probably give most people better image quality than they'd get with the Nikon D5500.
