Matthew Wong's video: Sony A7IV vs A7iii Detailed Video Autofocus Test 3 Different Lenses

I realized the last video I made here: https://youtu.be/OAyJJTiPWjM the lens I used was one that really didn't demonstrate the camera's ability to autofocus in video. Last year I compared the AF to the A7Siii and previously to the A7iii and I found the A7iii to be not bad. However I wanted to see what improvements Sony added to the A7IV. I tried the test with my Sony 50mm F1.8, 85mm F1.8 and Tamron 28-75 F2.8. I found that the A7iv again was noticeable better at lower F stops than the A7iii. The A7iii AF in video I found in the past was one of the best I've tried outside Canon's dual pixel system. However the new AF in video included with the A7IV has definitely brought Sony's video AF up to the level of its competitors. It even makes lenses I previously thought to be unusable for video (50mm F1.8) usable now. You can find an A7iv here: https://ebay.us/HVkbQ2 ----------------------------------------------------------------------- Sony A7iii: https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338084593&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FSony-a7III-Full-Frame-Mirrorless-Lens-Camera-Body-Only-ILCE-7M3%2F202469517939%3Fepid%3D9016438159%26hash%3Ditem2f241faa73%3Ag%3AGE4AAOSw~IFbwrJB%3Ark%3A2%3Apf%3A0 Sony 50mm 1.8: https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338084593&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FSony-FE-50mm-F1-8-Full-frame-Prime-E-Mount-Lens-SEL50F18F-A7-A7R-A7S-II-A5100%2F322103080299%3Fhash%3Ditem4afed6f56b%3Ark%3A1%3Apf%3A0 Sony 85mm 1.8: https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338084593&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FSony-FE-85mm-F1-8-E-Mount-NEX-Camera-Lens-SEL85F18%2F392113764155%3Fepid%3D233854697%26hash%3Ditem5b4bcd373b%3Ark%3A1%3Apf%3A0 Tamron 28-75: https://rover.ebay.com/rover/1/711-53200-19255-0/1?mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FNew-Tamron-28-75mm-F-2-8-Di-III-RXD-for-Sony-E%2F184016012733%3Fhash%3Ditem2ad83585bd%3Ag%3A8UAAAOSwDnlduoN7&campid=5338084593&toolid=10001&customid=