Nikon recently announced the D850. Unlike the prior upgrades from the D800/e to the D810, the D850 substantially raises the bar. So if you are looking for a new Nikon DSLR, the new and improved features may be worth the splurge. In announcing the D850 to commemorate its 100th anniversary, Nikon called its latest camera a “formidable tool for creators.” Compared to its predecessor, the D850 delivers more speed, superior low light performance, and more reliable autofocus. Its new ergonomic design also results in improved handling. According to Nikon, the most significant upgrade is the camera’s back-side illuminated (BSI) FX-format full-frame…