The a7R IV A features the 35mm full-frame back-illuminated CMOS image sensor with 61MP effective pixels, delivering depth and dimension that was once only available in medium-format cameras. The back-illuminated structure and effective area specific noise reduction techniques combine to deliver an extraordinary blend of low noise and high sensitivity for enormous imaging potential. | Sony | | Alpha a7R IV A Mirrorless Digital Camera Body with 28-75mm f/2.8 Lens | Best Buy