Like you, its hard for me to decide on which model to buy - a7Riii or a7iii. First and foremost the A7III and the A7RIII have different megapixel (MP) counts on their sensors. Currently have the a7ii and looking to upgrade. Better low light performance. On the other hand, Sony A7R III has a 42.0MP Full frame (35.9 x 24 mm) sized BSI-CMOS sensor and features Bionz X processor. If you were wondering if this camera is capable of doing wedding photography, it is certainly capable, just remember what entails into capturing a wedding with a 42MP raw file. More precisely it can record 177 JPG files or 89 RAW images. Portrait photographer Manny Ortiz recently got his hands on the newly-announced Sony a7 III full-frame mirrorless camera, allowing him to compare the $2,000 camera to his $3,200 Sony a7R IIIā€¦ BMPCC 4K vs Sony A7III Side-by-Side Comparison. Of course, the a7RIII features 5-axis IBIS that offers 5.5-stops of compensation and like the other models in the a-series range uses the Sony E-mount. .
2020 sony a7iii vs a7riii