Ben Corwin Posted May 9, 2014 Share Posted May 9, 2014 Is anyone else experiencing slower autofocus on their GH4 than on their GH3? earnesync 1 Quote Link to comment Share on other sites More sharing options...
Julian Posted May 9, 2014 Share Posted May 9, 2014 In video? What situations? I've only tested AF in photography since it has a whole new system. Worked great with AF tracking and fast moving subjects @ high fps.. Quote Link to comment Share on other sites More sharing options...
varicam Posted May 9, 2014 Share Posted May 9, 2014 I think the video posted in another >thread mentions that GH4 AF is indeed slower than GH3. Quote Link to comment Share on other sites More sharing options...
Darktide Media Posted May 10, 2014 Share Posted May 10, 2014 I shoot action sports and for us the GH4 AF system is really really fast, both in photos and video mode while tracking. Quote Link to comment Share on other sites More sharing options...
Ben Corwin Posted May 12, 2014 Author Share Posted May 12, 2014 I haven't done any in depth tests, but so far my Panasonic 14-140mm seems to hunt more on my GH4 than on my GH3 in video mode. Griffin Hammond has also made this observation with his Panasonic 12-35mm. He is the only other person I know of that's mentioned it as well. Maybe I just need to play with some settings to see if it helps speed things up. Quote Link to comment Share on other sites More sharing options...
Darktide Media Posted May 12, 2014 Share Posted May 12, 2014 Oh in video mode, ya i think there is problem with mine as well, hope this is fixed in a firmware, but in photos its super fast. Quote Link to comment Share on other sites More sharing options...
Ben Corwin Posted May 27, 2014 Author Share Posted May 27, 2014 Autofocus in 4K mode is slower I've found. For everything else it's blazin' fast! Quote Link to comment Share on other sites More sharing options...
64mulford Posted June 29, 2014 Share Posted June 29, 2014 Yep me too. Upgraded from a gh2 and the gh4's auto focus is MUCH slower than gh2. So much so that I can't even use it. Very disappointed but luckily there is peaking for manual focus. Really hope they can fix in firmware. Quote Link to comment Share on other sites More sharing options...
Michael1 Posted June 29, 2014 Share Posted June 29, 2014 Did you guys update the firmware in your lenses? Supposed to help. Michael Quote Link to comment Share on other sites More sharing options...
64mulford Posted June 29, 2014 Share Posted June 29, 2014 Will try that. Thanks. Quote Link to comment Share on other sites More sharing options...
Vesku Posted June 29, 2014 Share Posted June 29, 2014 It is good that AF in video is kind of slow in generally. I still hope that in action or sports shooting it could be faster. One suggestion for FW update would be adjustable AF speed in video (2-3 speed choices) and maybe adjustable AF distance range. And please get that video AFS/AFC in some button !!! Quote Link to comment Share on other sites More sharing options...
Brellivids Posted June 29, 2014 Share Posted June 29, 2014 GUYS and gals.. This tread is excellent example that you should pay attention to your information more carefully. All most all the posts here lack information. One reading this get's wrong impression like ZILLION times on wheter you are talking about autofocus while taking pictures or autofocus in video mode. IT should be all so stated what video mode is in question. My understanding is that GH4's AF speed in 4K video mode is slower than GH 3's AF speed in it's 1080p video mode. Quote Link to comment Share on other sites More sharing options...
Vesku Posted June 29, 2014 Share Posted June 29, 2014 GUYS and gals.. This tread is excellent example that you should pay attention to your information more carefully. All most all the posts here lack information. One reading this get's wrong impression like ZILLION times on wheter you are talking about autofocus while taking pictures or autofocus in video mode. IT should be all so stated what video mode is in question. My understanding is that GH4's AF speed in 4K video mode is slower than GH 3's AF speed in it's 1080p video mode. That is so right. There is a different with 24P, 30P, 50P, 60P, 4k, lenses, AF-modes, Scene contrast and +-EV, AF accuracy, etc... Opinions and scientific tests are 2 different matters. Quote Link to comment Share on other sites More sharing options...
64mulford Posted June 29, 2014 Share Posted June 29, 2014 That is so right. There is a different with 24P, 30P, 50P, 60P, 4k, lenses, AF-modes, Scene contrast and +-EV, AF accuracy, etc... Opinions and scientific tests are 2 different matters. Yes I'm aware various settings that cause differences in AF functionality but I still stand by my testing and expeience that the video AF on the GH4 is considerably slower than the GH2. Quote Link to comment Share on other sites More sharing options...
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