Matthew Wong's video: A7IV vs A7iii Day-Time Video Autofocus Comparison 2022 1080P 120FPS Comparison

In this video I put my A7iii against my A7iv to compare the AF in video between the two camera bodies. I am using the kit 28-70mm lens that came with the A7iv (accidentally ordered the wrong one) since I have never tried out this lens before to see how it compares to something like my Tamron 28-75 f2.8 lens. The A7iii has good AF but due to the lack of real-time eye AF in video like the A7c on shallower depths of fields it tends to lose track of the subject. However on a kit lens like this where the F stop range is 3.5 to 5.6 I never really saw any issues with the AF between the two systems. I think the only benefit to video on the A7iv will probably be noticed when I use lenses below F2.0. Another thing to note is that 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= , ,