<p>The Sony Alpha A7R is a specialist camera if we ever saw one. Visually it looks nigh-on identical to the Alpha A7 - the other full-frame compact system camera released alongside this one - but it's that capital "R", which we'll call "resolution", that makes the camera's key play.</p><p>For the 36-megapixel full-frame sensor in this camera comes without the low-pass filter for precision sharpness and huge file sizes. The A7R is, roughly speaking, a Nikon D800E crammed into a small body and finished off with the Sony E-mount.</p><p>If all that sounds somewhat baffling - low-pass what now? - then there's every chance that this isn't the camera for you. It knows its place and it's not pretending to be the one-solution-fits-all option. If, however, you're looking for big quality from a small body and understand the R's limitations - as well as its points of excellence - then the 1,699 body-only option could be your dream ticket to photographic wonderland.Alpha to zeta</p><p>As we touched upon in our original Alpha A7 review, the A7R's place in the compact system world brings with it some required learning. For it utilises the Sony E-mount lens system, but in order for lenses to cover the entirety of that full-frame sensor they need to be the "FE" designated ones.</p><p><a href="http://www.pocket-lint.com/review/125645-sony-alpha-a7r-review">Keep reading...</a></p>