The main differences between the two cameras is that the 24.3-megapixel α7 uses a hybrid AF system, while the 36.4-megapixel α7R uses a Fast Intelligent AF system and the lowpass filter has been removed. Both cameras boast a 16-bit BIONZ X processor, which increases speed, tonal detail and reduces noise.
For those exploring video capability, the cameras also offer HDMI output, zebra bars for exposure tracking, and is compatible with an XLR adapter kit.
For full details, check out the official press release below:
Sony Unveils World’s First Full-Frame Mirrorless Cameras1
SAN DIEGO, Oct. 15, 2013 – Sony’s new α7 and α7R digital cameras are the world’s smallest full-frame interchangeable lens models2. Highly anticipated by professional photographers and imaging enthusiasts alike, the two new cameras offer an unmatched combination of creativity, customizability and portability.