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Everything posted by Emanuel
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Right and you look like to quote me : D I just try to figure out the chances on getting the sweet spot also in order to prevent focus hunting based on such technique: AF lock + using touchscreen to select focus but avoiding those irritating AF microadjustments to include not only static subjects.
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I'd love to see this one on AF lock + tap-to-focus without pulsing in the background...
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Well, no need for anything really elaborated : ) Simple stuff might be rather useful all the time. I bet that "nope" up there @Orangenz is because the workaround may work out even when the subject moves. I guess the key should be not let pulsing to pop up in the background (even though, my wondering if focus hunting issues are addressed with the slowest settings) and 'tell' the camera through touchscreen where to put the focus.
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Would be interesting to see a video example, can you?
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I guess with AF lock and touchscreen focus altogether we can track the subject going with tap-to-focus any time even when the subject moves. With no pulsing for background. I also want to believe it is possible to avoid autofocus hunting on subject with the slowest settings. Without mention to push and hold the AF button in manual mode. Or am I wrong here?
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@Arikhan @Ken Ross Not GH5 here yet but I guess both tap-to-focus + AF lock used together can totally solve the pulsing issue or not?
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You funny.... I see next time I can't recommend you anymore a capture device to your disliking or you'll risk to use it again ; ) This time twice (GH5 & Mavic! WOW) -- hope you don't operate the same with the best 2nd half of a man *cough cough* Nevermind... Your videos in a way or another always save the grace :-)
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I also second they should simplify as rule number one instead. These cameras seem more programming than anything else, mostly photography (stills or motion).
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Sure Ken. Meant focus hunting there. The camera doesn't guess by herself. So, as Brownstone also concurs the rule we've been addressed on these boards and even Yuryev and the Luminary Linaschke (PhotoJoseph) have ignored, tap-to-focus is your closer friend to follow.
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Good question. I guess it is only a matter of choice, that is, the need of human intervention vs artificial intelligence too. If you notice on the tree example, the machine/algorithm has no clue which subject to focus. Antos explains it pretty straightforward here at this point: Hence the good chances a real improvement may hopefully be implemented by firmware update, now practically announced and @ brand top-level BTW. Meaningful IMHO. Without mention the touchscreen focus workaround.
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Here's another one: "So in conclusion move the camera and use touch tracking AF mode" ~ Tom Antos in comments section: https://m.youtube.com/watch?v=Aswksw6eNJk
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In conclusion, Brownstone and Antos testing confirm the need to lock the focus either on camera or tripod to prevent hunting. That's the key.
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Yet, to each its own... Not the best of tests at all (...) but confirms some accurate principle: each setup/lens requires a/'the' setting by its own (combo is the word).
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Where tap-to-focus stands as one of the finest workarounds for obvious AF limitations on GH5. Especially on tripod setup -- take a look from minute 05:09 on:
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Indeed. Funny that a few on these boards wondering themselves were asking me how tap-to-focus could solve the issue and it is actually his first bet in order to handle the job and fix it... Sorta hilarious to my eyes when I've watched such workaround there. So, I beg your pardon for the immodesty here and this 'I want my medal' note now :-) And from minute 02:28 to 02:51. BTW, also previously posted here:
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Here are two other threads with some interesting info Mavic related:
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News with some days already but I believe this is worthy of its own thread considering the whole AF controversy which has made Panasonic to lose clientele for the rivals out there... Interview with Yosuke Yamane, Director of Panasonic’s Imaging Division: https://dpreview.com/interviews/9493665945/panasonic-s-head-of-cameras-talks-gh5-restructuring-and-future-ambitions
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Not possible to embed, here's another link from Luke's LUT factory @Neumann Films: https://vimeo.com/216930644 Don't pay attention to the content, but cinematography is pretty on the spot :-)
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...Brazilian YT : P Nevermind... the best music video ever :X 1.2K subscribers : D Not bad! LOL
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^ And here's the review by One Orbit Studios: "The GH5 uses a contrast detection system, which utilizes 225 Auto Focus points and a 480 fps drive speed. In this video I go over two Auto Focus options - Autofocus Flexible (AFF) and Autofocus Single (AFS). I do not cover Autofocus Continuous (AFC) in this video. I found AFF to perform just as well if not better than AFC when tracking moving subjects. All focus tests performed with the version one of the Panasonic Lumix 12-35mm f2.8. To maintain consistency between all the tests, the speed and reliability of the autofocus system system was tested in the same lighting conditions. Below is a description of the 6 Auto Focus Modes covered in this video: *Autofocus Flexible or AFF. This option is good for filming in situations were the subject moves unpredictably. Like AFC, this mode will attempt to anticipate the movement of the subject. 1. The first test was performed with the Face/Eye Detection mode. This mode recognizes a subjects face by displaying a square outline. The subjects eyes are tracked with two intersecting lines. Notes: - Focus adjusts well when subjects moves towards and away from the camera. - Rapid movement out of the frame and the GH5 handles focusing well. - Does adapt well to obstructing the view of the subject. - Of all the Auto Focus modes, Face/Eye Detection performed the best in low light. 2. The second test was performed with the Tracking mode. To set a Tracking point on your subject simply touch the screen. Notes: - Tracking point expands and contracts with subject distance. - Focus Speed is slow to adjust when moving towards and away from the camera. - Rapid movement out of the frame and the GH5 struggles to Track the subject and maintain focus. - Tracking mode does not adapt well when obstructing the view of the subject. - Very easy to through the Tracking point off. - Tracking mode performs worse in low light. *Autofocus Single or AFS. This option is good for filming in situations were the subject is stationary. The remaining tests were performed with a Nikon DSLR in the foreground and a group of Lenses set up in the background. 3. The third test was performed with the 225-Area mode. This mode utilizes up to 225 Autofocus points. This mode is effective when your subjects are not in the center of the frame. Notes: - Focus speed was slow to pull subjects close to the camera in focus. - There was some focus hunting when pulling subjects further from the camera in focus. - Focus hunting becomes worse in low light. 4. The fourth test was performed with the Custom Multi mode. Among the 225 Autofocus points, this mode enables you to set a custom shape around the subject. Notes: - Was able to pull subjects close to the camera in focus. - This mode Failed to focus on subjects further from the camera. - Not reliable. 5. The fifth test was performed with the 1-Area mode. This mode sets one area of focus on the subject. Notes: - Focus speed was slow to pull subjects close to the camera in focus. - There was some focus hunting when pulling subjects further from the camera in focus. - Focus hunting becomes worse in low light but slightly better than 225-Area mode. 6. The sixth test was performed with the PinPoint mode. This mode helps you achieve a more precise focus point on your subject. Tapping on the subject will activate a zoomed in preview of the focus area. You can also slide the cursor on the screen to specify the focus point. You do lose the zoom preview once you press record. Notes: - Focus speed was slow to pull subjects close to the camera in focus. - There was some focus hunting when pulling subjects further from the camera in focus. - Focus hunting becomes worse in low light. - Overall this performed just as well as the 1-Area mode. In summary, the GH5 autofocus system is not good for tracking fast moving subjects. I would recommend using the Face/Eye Detection mode in well lit scenes with high contrast. I would avoid the Tracking and Custom Multi mode, which as you saw were very unreliable. Focus speed was not great but was consistent in the 1-Area and PinPoint modes. In general, the GH5 produced a lot of focus hunting through out our low light tests. List of Auto Focus modes best to worst: 1. Face/Eye Detection -AFF 2. Pin Point -AFS 3. 1-Area -AFS 4. 225-Area -AFS 5. Tracking -AFF 6. Custom Multi -AFS"