If you thought the megapixel wars were over, think again: Canon's latest DSLRs cram just over 50 of them into a full-frame sensor. The EOS 5DS and 5DS R variant — which omits the antialiasing filter for better sharpness at the potential expense of moiré patterns on fine textures — have so much resolution that you'll get 19-megapixel images even if you shoot in crop mode with lenses designed for APS-C sensors. They're the highest-resolution full-frame DSLRs ever.

Other specs include shooting at 5 frames-per-second, 61-point autofocus, dual Digic 6 processors, 3.2-inch 1-million-dot LCDs, 1080p video, a mirror vibration control system to combat camera shake, and viewfinders with 0.71x magnification and 100 percent coverage. Both the 5DS and 5DS R will be available this June; pricing information isn't yet available.

Canon is also introducing a new 11-24mm f/4 L lens, which it says is the widest-angle rectilinear zoom lens in the world. (Rectilinear means that the glass has been optically corrected so that straight lines are rendered free of distortion even at extremely wide angles; fisheye lenses can be wider, for example, but give you severe distortion.)

At the other end of the scale to the 5DS, Canon is also releasing new models in its popular line of entry-level DSLRs. The Rebel T6i, follow-up to the Rebel T5i, is a pretty standard DSLR that should match up to the mirrorless EOS M3 in most respects; it uses the same 24-megapixel APS-C sensor and has added Wi-Fi connectivity. Another model, the T6s, shuffles the layout around to make room for an extra dial and top-mounted monochrome LCD, making it closer to a high-end DSLR in operation. Both cameras will be available in April; the T6i costs $649 body-only, and the T6s is $100 more.