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The Canon 5DS and 5DS R (pictured here) boast a 50.6-megapixel CMOS sensor. That's not a typo, it actually has an output resolution of 50.6 megapixels. The sensor is full-frame, just like the earlier 5D cameras. Rather than replacing the 5D Mark III, it will sit above it in the Canon range.

Caption by / Photo by Lexy Savvides/CNET

The two models are identical apart from one important feature: the 5DS R has a low-pass cancellation filter inside to deliver the maximum resolution from the sensor. The 5DS R is designed for photographers who need the sharpest image possible, such as landscape photographers.

Caption by / Photo by Lexy Savvides/CNET

The autofocus system in the 5DS and 5DS R is lifted from the 5D Mark III. This means a 61-point AF array with 41 cross-type points.

Caption by / Photo by Lexy Savvides/CNET

Although it looks remarkably similar to the 5D Mark III in most respects, the mode dial now features raised markings rather than a flat plate. The top LCD screen remains the same.

Caption by / Photo by Lexy Savvides/CNET

Befitting a professional-grade dSLR, the 5DS and 5DS R have dual card slots: Compact Flash and SD.

Caption by / Photo by Lexy Savvides/CNET

Sometimes, 50 megapixels is just too much. The cameras allow you to choose a crop ratio that reduces the output to 19 megapixels which is a bit more manageable for certain applications. Select from full (no crop); 1.3x (APS-H equivalent crop); or 1.6x (APS-C equivalent crop). The viewfinder also blacks out around the crop area to show you exactly what is being captured.

Caption by / Photo by Lexy Savvides/CNET

Let's just take a look at that image quality screen. Yep, it's definitely saying 50 megapixels…

Caption by / Photo by Lexy Savvides/CNET

Serious video users will still want to grab the 5D Mark III, as the 5DS and 5DS R don't have headphone monitoring. USB 3.0 is a nice addition, though.

Caption by / Photo by Lexy Savvides/CNET
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