>>3999130No where mentions this because it's a fantasy that anon came up with to justify his inability to buy gear that costs more than $300.
Sonys mount has no issues with vignette until you want to go faster than f0.63, which is significantly faster than any camera lens ever sold.
https://petapixel.com/2019/03/06/sony-e-mount-lenses-could-be-as-fast-as-f-0-63-theoretically/Sony are better value than the competition as they're the only camera company that can make everything in house, the sensor is by far the most expensive component in a camera, and everyone except canon buys them off Sony.
Between the a7iii and a7riii, for the sake of 300 I'd get the r, if you need slightly better burst sustain (28 Vs 40 shots) or if you're shooting video, the non r may be more suitable.
