Tagged with video - Personal View Talks https://www.personal-view.com/talks/discussions/tagged/video/p1/feed.rss Sun, 28 Apr 24 19:07:20 +0000 Tagged with video - Personal View Talks en-CA Panasonic GH2 Custom Neat Video Profiles (noise reduction) https://www.personal-view.com/talks/discussion/23754/panasonic-gh2-custom-neat-video-profiles-noise-reduction Thu, 09 Apr 2020 07:47:38 +0000 TreyM 23754@/talks/discussions Hi everyone, I spent a few hours over the past two days creating some Neat Video noise profiles for the GH2 running Moon T8. Currently, I have only created profiles for the 24H, 24L, and 720p60 SH settings, and I use Neat Video version 4. I'm not sure if these profiles will work on other versions, but they may.

If there is enough interest, I can begin to expand the profiles to support more video modes and various hacks beyond Moon T8.

I created a profile for each ISO setting, including secondary settings for the ISO bugged modes (up to 2500 ISO for those) ("clean" is normal, "dirty" is with the bug in case you forget to fix the problem and shoot with the ISO bug)

These profiles were created using the Smooth film mode at -2 -2 -2 -2, though they will probably still work with other modes. What is being picked up here is mostly sensor ISO noise since Moon T8's bitrate is so high.

The end result is that I have been able to recover about 1 - 1.5 stops of extra detail in the shadows on my shots as opposed to it looking like a total mess of noise. If you shoot at crazy high ISO settings, it can't make a shot at 12,800 ISO look like 200 ISO, but as long as your footage is reasonable, you can greatly expand the usable dynamic range of the camera and color grading is that much better.

These profiles should be used FIRST before doing any other processing such as grading, sharpening, scaling, or color correction. Etc...

The 1080p24 profiles seem to work fine on footage shot in variable mode, for example, if you use the 80% mode for slight slow motion.

Here is a link to an Imgur gallery showing what the profiles are capable of: Gallery

Download links:

1080p24 24H

1080p24 24L

1080p24 EX24H (Ex. Tele Convert Mode)

720p60 SH

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Used Smart phone with good Video Performance around 200$ https://www.personal-view.com/talks/discussion/27404/used-smart-phone-with-good-video-performance-around-200 Fri, 09 Dec 2022 19:03:44 +0000 gameb 27404@/talks/discussions I am looking to buy a used smart phone with good enough video performance around $200 to use it eventually as video footage for a documentary. I will be travelling in regions where I will not be able to use my camera equipment. Anybody has some ideas? (Somebody told me about IPhone 8 Plus). Thanks for advise

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Sony A7s III, 4K 60p and FHD 240p, late and sligthly disfunctional Sony child https://www.personal-view.com/talks/discussion/17956/sony-a7s-iii-4k-60p-and-fhd-240p-late-and-sligthly-disfunctional-sony-child Wed, 11 Oct 2017 01:28:13 +0000 paglez 17956@/talks/discussions image

Rumored specs

image

image

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Panasonic G90, G95, G99 m43 Camera Topic https://www.personal-view.com/talks/discussion/21783/panasonic-g90-g95-g99-m43-camera-topic Mon, 25 Mar 2019 07:31:08 +0000 Vitaliy_Kiselev 21783@/talks/discussions image

Specs

  • m43 sensor 20.3M pixels Live MOS sensor, without low pass filter
  • 5-axis Dual I.S. 2, up to 5 stops of image stabilization
  • 4K30p / Full HD Movies, no time limit
    • 3840 x 2160 @ 30p / 100 Mbps, MP4, H.264, AAC
    • 3840 x 2160 @ 24p / 100 Mbps, MP4, H.264, AAC
    • 1920 x 1080 @ 120p / 20 Mbps, MP4, H.264, AAC
    • 1920 x 1080 @ 60p / 28 Mbps, MP4, H.264, AAC
    • 1920 x 1080 @ 60i / 17 Mbps, AVCHD, MTS, H.264, Dolby Digital
    • 1920 x 1080 @ 30p / 24 Mbps, AVCHD, MTS, H.264, Dolby Digital
    • 1920 x 1080 @ 30p / 20 Mbps, MP4, H.264, AAC
    • 1920 x 1080 @ 24p / 24 Mbps, AVCHD, MTS, H.264, Dolby Digital
  • 4K photo, 4K burst, 4K burst S/S, 4K pre-burst
  • V-Log L built-in, plus Cinelike D, and Cinelike D
  • 2.36 million dots organic EL LVF, finder magnification 0.74 times
  • 3.0" LCD vari-angle touch panel monitor
  • 9fps continuous shooting (AFS) / 6fps with AFC, raw 30+ images, JPEG 600+
  • AF tracking for plane and depth
  • Built-in pop-up flash
  • Face and eye detection AF, touch-AF, touch shutter
  • Dustproof and drip proof
  • Wi-Fi and Bluetooth
  • Headphone and mic sockets
  • USB charging with MicroUSB socket / USB power
  • 290 shot battery life, expands to 1000 shots with power saving switched on Wi-Fi, Bluetooth)
  • 130.4 x 93.5 x 77.4 mm
  • 536 g
  • Japan release date - May 23, 2019
  • $1199

The LUMIX G90 is a true hybrid camera, with equal importance given to its extensive video capability.

It can record unlimited 4K video (3840x2140) at 30p/25p (50Hz Area)/30p (60Hz) or 24p in addition to Full HD (1920x1080) at 60p/50p (50Hz Area), 60p (60Hz Area) with full-time AF. High Speed Video can also be utilised to record slow-motion video in Full HD at 120fps (1/4x), 90fps (1/3x) and 60fps (1/2x).

Real-time image output to an external monitor in 4:2:2 / 8-bit*1 via an optional micro HDMI cable is available, while V-Log L is pre-installed for wider dynamic range for colour rendering in post-production. Additionally, a 3.5mm microphone jack for high-quality audio recording is included, as well as a headphone socket.

The G90 features LUMIX’s well-known 4K Photo modes. Giving users the ability to extract fleeting moments at 30fps from a 4K video, it’s now even easier thanks to a new Auto Marking function which automatically detects frames with changes to the image. Sequence Composition has also been added for creating “stromotion” images by combining multiple images into one shot for a fun effect.

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What would be the best Fuji cameras for video? https://www.personal-view.com/talks/discussion/26229/what-would-be-the-best-fuji-cameras-for-video- Thu, 23 Sep 2021 18:22:49 +0000 Manu4Vendetta 26229@/talks/discussions Obviously the answer is the X-T4, but Fuji has an extensive lineup of models, but it's confusing for the same reason if you dont know the Fuji world.

So it would be good to indicate which would be the recommended models and in order of their cameras for video.

Thanks.

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Why heavy cropping with GH2 video? https://www.personal-view.com/talks/discussion/26057/why-heavy-cropping-with-gh2-video Mon, 16 Aug 2021 19:14:49 +0000 jclayton 26057@/talks/discussions I'm new to GH cameras. I bought a GH2 to play around with video. I hacked it with Flowmotion. I was surprised to see the video was cropped far more than photos. Can someone explain why the considerable difference in cropping? Or, did I mess up hacking it?

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H.265 HEVC topic. Same quality, half file size. https://www.personal-view.com/talks/discussion/3306/h.265-hevc-topic.-same-quality-half-file-size. Tue, 22 May 2012 15:42:11 +0000 Hallvalla 3306@/talks/discussions Didn't realize h265 is predicted to become available in 2013:

http://reviews.cnet.com/8301-13970_7-57387626-78/qualcomm-shows-horsepower-of-next-gen-h.265-video/

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Foveon x3 for video? https://www.personal-view.com/talks/discussion/4903/foveon-x3-for-video Mon, 15 Oct 2012 17:42:52 +0000 pletta 4903@/talks/discussions Hello,

So i've been reading about image sensors (much of it is way over my head) but I'm doing my best to learn and I'm curious about foveon x3 image sensors or at least the concept with regard to video. From what I've read (and much of that is written by foveon or sigma itself so it's hard to know for sure) this sensor or technology seems like it might provide some real benefits. They "say" that it records more color information than regular sensors that don't utilize their stacked pixel sensors as it captures light at different wavelenghts with the use of different layers of silicon within the sensor itself and thereby captures "full color" at each pixel location. This all sounds really good to me but I've looked and haven't really seen any extremely positive reviews of either the sensor or cameras using the sensors. My main question is whether this sensor or concept might make a ripple in video imaging technology or if there are limitations that keep this from being a serious option for sensors in video.

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Sony A7 High bitrate hack? https://www.personal-view.com/talks/discussion/24722/sony-a7-high-bitrate-hack Wed, 11 Nov 2020 12:20:20 +0000 JimmySuarez1981 24722@/talks/discussions In 2020 I'm purchasing a Sony A7 (Mainly for stills) and I'm curious to know if a hack to increase video bitrate (Just like Driftwood hack for the Lumix GH2) exists at all???

Thanks in advance!

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HDRing video footages https://www.personal-view.com/talks/discussion/24171/hdring-video-footages Fri, 31 Jul 2020 05:21:35 +0000 sobhan2 24171@/talks/discussions How to HDR gh2 footages by color grading

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GH2 Hacked - SanDisk Extreme Pro 95MB - Video stops at varying time without error https://www.personal-view.com/talks/discussion/2854/gh2-hacked-sandisk-extreme-pro-95mb-video-stops-at-varying-time-without-error Fri, 13 Apr 2012 10:07:56 +0000 thomasklosinsky 2854@/talks/discussions Hi guys,

I searched the forum and the whole internet for this problem, but didn't find any post or anyone having this problem, so I started a new topic for this and hope I didn't search for the wrong keywords... ;). I am using the GH2 for video shooting very short time and all I am doing these days is not really working well. I know that it should be easy to use firmware patches but for me it turns out not to be that easy as it maybe should. I used a few patches and tested around with each for quite a bit and tried to check wether the patch is working fine or if there are occuring errors while recording. I would need a very stable patch since I always need to record longer footage... not just 15min, but most of the time 2-3 hours. I found that SD card speed is a thing which is why I bought the SanDisk Extreme Pro with 95MB/sec. Used the Sanity 4.1 Patch which should be stable, but the cam stops recording video after some time (I couldn't specify when it does) without any error. It just stops recording and doesn't write the file completely to the card. Used the Quantum X SpanMyBitchUp and I get the same error. Also tried some other patches, some came up with errors that the card is not fast enough, some didn't... most of them didn't...

Since I can't tell why that is and I don't know how to find out why the cam stops recording I am not sure what to do next. Fact is that the patches really do enhance the quality which I would not love to miss ;).

Can anyone help me with this? All the best from Hamburg, Thomas

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Magix Video Pro X9 and now Video Pro X10 aka X 2018 https://www.personal-view.com/talks/discussion/15885/magix-video-pro-x9-and-now-video-pro-x10-aka-x-2018 Fri, 14 Oct 2016 15:56:32 +0000 Vitaliy_Kiselev 15885@/talks/discussions

What changed?

  • Good things - added curves, improved HEVC (including encoding)
  • Since October 2016 added support for 10-16bit videos and color correction for them
  • Not so good - for main page offer they removed Mercalli V4 and moved it in to Vegas offer
  • Normal price at around $399, 399 EUR, better see offers below
  • http://www.magix.com/int/video-pro-x/

Note that since middle of 2016 all versions are called Video Pro X, and it upgrades just like Adobe products regularly, but without all this monthly stuff and it will work indefinitely.

Good offer that still includes Mercalli V4 and more for 199 EUR

  • MAGIX Video Pro X8 (+free one year upgrades including major versions)
  • proDAD Mercalli V4 (now best soft stabilizer)
  • Video Sound Cleaning Lab (this one has spectral cleaning ala isotope RX, just simpler)
  • NewBlue ActionCam Package
  • 199 EUR total

http://www.magix.com/index.php?id=22659&L=25&utm_source=Facebook&utm_medium=Display_Sales&utm_campaign=VideoProX_2016_DE_REM

Upgrade offer

  • MAGIX Video Pro X8 (+free one year upgrades including major versions)
  • Custom keyboard
  • HitFilm plugins
  • 199 EUR

http://www.magix.com/index.php?id=22659&L=25&utm_source=Facebook&utm_medium=Display_Sales&utm_campaign=VideoProX_2016_DE_REM

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Video Noise and the Origins of Our Universe https://www.personal-view.com/talks/discussion/23840/video-noise-and-the-origins-of-our-universe Fri, 08 May 2020 14:39:02 +0000 zhalberd 23840@/talks/discussions I wanted to share an article I wrote on my blog recently that I think some on this site might enjoy if you have some spare time.

https://www.magiclantern.blog/2020/01/12/video-noise-and-the-origins-of-our-universe/

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Samsung S20 Ultra specs https://www.personal-view.com/talks/discussion/23388/samsung-s20-ultra-specs Sat, 18 Jan 2020 13:57:17 +0000 Eno 23388@/talks/discussions https://www.gsmarena.com/samsung_galaxy_s20_s20_and_s20_ultra_full_specs_leak-news-41094.php

Main sensor 108 MP 1/1,33" capable of 8K 30p video and 4K 60p, 48 MP telephoto sensor, 12 MP ultra wide sensor, 10x optical zoom range, 40 MP wide front camera with 4K 60p.

https://fdn.gsmarena.com/imgroot/news/20/01/s20-series-full-specs/-727/gsmarena_002.jpg

...meat the entry LV dedicated camera killer, course Japanese camera manufactures love to iterate in microscopic steps until they run out of business. :)

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Intermediate Travel Video/Documentary Tips https://www.personal-view.com/talks/discussion/22816/intermediate-travel-videodocumentary-tips Wed, 23 Oct 2019 06:35:15 +0000 mojo43 22816@/talks/discussions This is the next video in my series on how to make a good travel video. I hope that you get something out of the tips and as always, I would love to hear what you would like to hear in the next video!

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G7 denoise presets and profiles for NeatVideo 4, 4K and FHD https://www.personal-view.com/talks/discussion/17802/g7-denoise-presets-and-profiles-for-neatvideo-4-4k-and-fhd Thu, 21 Sep 2017 15:29:28 +0000 apefos 17802@/talks/discussions NeatVideo 4 denoise presets and profiles for Panasonic Lumix G7, for 4K and Full HD.

Conservative amount of denoise to avoid plastic look and keep image texture after denoise.

Camera settings:

Standard
Sharpness +1 (also works for sharpness 0)
Noise reduction -5

Two versions:

Without shadow/highlight curves
With shadow/highlight curves, S+3/H-3 (the maximum amount before image gets ugly) (can be used also for S+2/H-2)

Download in posts below:

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Choosing a GH2 Hack in 2018 https://www.personal-view.com/talks/discussion/21154/choosing-a-gh2-hack-in-2018- Tue, 18 Dec 2018 08:21:22 +0000 Fujizen 21154@/talks/discussions Hi,

I have a GH2 with MD rokkor vintage lenses, im gonna shoot mainly music videos (with a lot of moving shots, slow motion, low lights and exterior) and some short films in the future. 30min of clips is enought for me I need quality but i really like the vintage look, im lost there is too much patch and informations, so i call your experience, what is the best possibility for me ?

Thank you for your help

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Difference between Magix Vegas Pro and Video Pro https://www.personal-view.com/talks/discussion/21200/difference-between-magix-vegas-pro-and-video-pro Wed, 26 Dec 2018 08:02:52 +0000 RoadsidePicnic 21200@/talks/discussions Recently got involved in deploying a very small institutional communication team. The hardware available to video editing is mostly a couple of low profile sandy bridge i7 and common RAM witch would be added 1050ti. Target source is GH5 (not defined).

Searching for some editors with FX suite that reported to run OK on these specs, decided to contact Magix about their Vegas Pro and Video Pro software.

The reply came:

  • Video Pro is a semi-professional software to advanced videographers
  • Vegas Pro is a professional software to production companies

So, ok it does give the idea of how the company place the two, but would the people here on the forum know about the effective difference of the software? What are the main things that set them apart in terms of function and integration?

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Which m43 mini has MANUAL video control - GX8, GX9, GX85, GX850, ???? https://www.personal-view.com/talks/discussion/21148/which-m43-mini-has-manual-video-control-gx8-gx9-gx85-gx850- Mon, 17 Dec 2018 11:34:46 +0000 c3hammer 21148@/talks/discussions Just picked up a slightly used GX850 to do some B roll 4K video and found out that it doesn't have a manual video mode that I can find anywhere.

I've been pouring over video reviews and the specs of the Panasonic mini 4K possibilities and can't find if any of them have a manual video mode.

If anyone knows if any of these tiny 4K monsters allow you to do manual control, please let me know? Looking for an ultra light weight option to supplement my GH5.

Cheers, Pete

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A Series on How to Make a Good Travel Video... Vid #1 https://www.personal-view.com/talks/discussion/20703/a-series-on-how-to-make-a-good-travel-video...-vid-1 Sat, 20 Oct 2018 15:13:43 +0000 mojo43 20703@/talks/discussions I just created the first video of hopefully more about how to create a Good Travel Video. All based on my experiences and past, but wanted to see if you guys/gals had any thoughts around things that you would want to see and if you are even interested at all??

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Fujifilm X-E3 camera topic https://www.personal-view.com/talks/discussion/17693/fujifilm-x-e3-camera-topic Thu, 07 Sep 2017 00:26:45 +0000 Vitaliy_Kiselev 17693@/talks/discussions image

Specs

image

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Travel Video Hong Kong https://www.personal-view.com/talks/discussion/19821/travel-video-hong-kong- Tue, 05 Jun 2018 08:23:03 +0000 mikeyeung5 19821@/talks/discussions Travel video and mood shot was filmed in Hong Kong

Camera: Lumix GH5 + Gimbal, most footage shot in 180 fps

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GH3 Best Video Settings https://www.personal-view.com/talks/discussion/7091/gh3-best-video-settings Tue, 28 May 2013 18:13:57 +0000 maddog15 7091@/talks/discussions Bought a GH3 just over a week ago. So far extremely happy with it on many levels. Have an interview job coming up so I did a multi cam test with my GH2 (Moon T5 loaded) and my new GH3 (Highest setting - MOV 1080p 24, @ 72Mb/s, All Intra). GH3 as camera A - front, GH2 as camera B - profile. When I synced the two vids in Premiere Pro for a multi cam edit... things were...different. Long and short of it.... the GH2 with Moon T5 kicked the GH3's butt hands down in low light.

In a nutshell the GH3 produced much more noise than I expected. And an overall lower quality image vs the GH2 under the same shooting conditions. (Both cameras shooting with the same f-stop, S-speed and ISO)

It was recommende3d by @robbin that I try the 50Mb/s IPB setting. I did so but still don't see much improvement or change in the noise with lower light. Was shooting at ISO 400 so I should be fairly safe right? Per many other professional shooters I have Sharpness at -5, Contrast -5, Saturation -2. Noise Reduction at 0 as -5 allows too much noise and +5 seems to muddy or soften the image as a whole to me.

Any feedback is welcome on best video settings for GH3

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Nature video in Iceland (shot with a7s, gh5 and dji phantom) https://www.personal-view.com/talks/discussion/18622/nature-video-in-iceland-shot-with-a7s-gh5-and-dji-phantom Tue, 02 Jan 2018 08:59:21 +0000 conscius 18622@/talks/discussions Some friends and I shot this video this may in iceland. Most shots are from mine sony a7s (slog2)

I still like this camera, i didn't make the step to buy a a7sii. Still waiting. Hopefully the a7sIII has 10 bit

Anyway, what do you guys thing of this video?

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GH4 - Best Video Settings https://www.personal-view.com/talks/discussion/10255/gh4-best-video-settings Fri, 25 Apr 2014 20:17:13 +0000 maddog15 10255@/talks/discussions Hello all. Anxiously awaiting my GH4, I'm starting the same thread topic that I did with the GH3. At 32 pages of input and tests for the GH3's Best Video Settings, I thought it would be a good idea to do the same for the GH4. Dedicated to user input and results regarding video settings alone. Please share and post your video tests, comparisons and opinions.

I look forward to sharing and learning from you all.

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What do you need to make these effects in music videos? https://www.personal-view.com/talks/discussion/13701/what-do-you-need-to-make-these-effects-in-music-videos Sat, 12 Sep 2015 21:12:37 +0000 dlzn 13701@/talks/discussions Who knows what type of software and techniques are used to make this? Also do you need some type of hardware like digital drawing boards?

What do you use or recommend?

Thanks in advance.

Cheers,

D

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Personal View 2017 LAING Video Contest https://www.personal-view.com/talks/discussion/16128/personal-view-2017-laing-video-contest Thu, 01 Dec 2016 18:48:34 +0000 Vitaliy_Kiselev 16128@/talks/discussions Welcome to our new video contest.

It is good tradition to make winter video contests on PV.

Terms

  1. You can submit TWO videos made by you personally or your small team using any camera. Just post it in this topic.
  2. You can submit any video made after contest start or up to 3 months prior of contest start.
  3. Clip must reside on vimeo or youtube video hostings and must have in description "personal-view laing contest" text with link to contest page (for contest time).
  4. Video must be between 2 and 10 minutes in length. if you think that video is very good you can submit longer videos.
  5. Contest duration is until March 17, or as we reach 25 participants.

Winner selection

  1. In this same topic any PV member registered before contest start date can post names of up to 3 videos that he likes most. Contest participants can also vote for videos if they are not their own.
  2. Members with more than 500 posts can post names of up to 5 videos that they like most.
  3. In the closing day I'll post up to 8 videos list I like most.
  4. Member with video that will get most mentions in lists will be declared winner. Winner will have special status on forum for one year.
  5. In situation where two or more videos get exactly same number of mentions topic will be reopen to allow more members to vote.

Prize - Laing H5 Steadicam, new 2016 model

  • Work with any camera+ lens combination up to 2.8kg
  • Weight is only 0.67kg, so you can use it with bare hands for prolonged time
  • Very compact
  • Exceptional manufacturing quality Laing is known for
  • No charging required :-)

image

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Short Doc - Shot in Bush of Sierra Leone. A7s II, Rokinon 20mm, No lights. https://www.personal-view.com/talks/discussion/16725/short-doc-shot-in-bush-of-sierra-leone.-a7s-ii-rokinon-20mm-no-lights. Tue, 11 Apr 2017 10:33:36 +0000 TS_Naylor 16725@/talks/discussions A family's sense of mission brings desperately needed health and medical aid to Sierra Leone's poorest of the poor.

This film was shot entirely on a Sony A7s II with no lights, tripod or crew, just me as director - DP. For my day job, I work with full size crews and camera packages (Alexa, Red, etc) for TV and commercials. But this project, took place in the bush of one of the poorest countries on Earth. The entire camera / sound package had to fit in a small back back and never leave my sight. For sound I used a Rode Video Mic Pro for almost everything and a Sennheiser G3 kit for interviews. For glass, I used a Canon 24-105 and a Rokinon 20mm Cine as well as a full set of Tiffen White Water 77mm Filters and BW Polarizer.

Initially, I ran with a Movcam cage and top handle as well with Wooden Camera handgrips and an F&V Spectra 4.3" on board monitor. But after a few hours, I realized the paramilitary look of the camera attracted too much attention and undermined my subject's candidness, I stripped it down to just the camera body, metabones E mount adaptor, lens and Rode Mic and used the camera's EVF or LCD. It's amazing how a small change in gear, changes people's behavior around you. If I came in with a proper "pro" rig, I would've been mobbed at every turn.

For settings, I tried the EOS Pro Settings. Big mistake. Contrasty and red. Fail for sunny conditions and skin tones. You'll can easily see which shots used that. I then switched back to my reliable Cine 4 settings with black level pushed up, magenta down, sharpness all the way down, etc. Despite the settings mistake, it was definitely a blast and a learning experience.

Post was done on FCPX. With the latest updates, I find this to be the best doc editing software out there. Took me a while to make the switch but once I figured out the language, it saves me at least 30 % more time over Premier or Avid. Transcoded A7s II 4k footage to Pro Rez LT to cut and finish on.

Anyway, enjoy the film.

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Sthefany Absoluta https://www.personal-view.com/talks/discussion/16693/sthefany-absoluta Tue, 04 Apr 2017 17:15:45 +0000 apefos 16693@/talks/discussions The shining star from the country side of Brazil culture, backwoods pop singer:

"One, two, three, I need you! Who is my hero? Who comes to help me?"

"I do not care about what people talks about me, talk bad or good, but talk about me!"

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Improve DFD contrast based auto focus for video. https://www.personal-view.com/talks/discussion/16596/improve-dfd-contrast-based-auto-focus-for-video. Wed, 15 Mar 2017 09:21:43 +0000 cas1 16596@/talks/discussions Dear Panasonic,

I love to see a better video auto focus system. DFD has already removed the first wrong direction start of the focus pull, but I like to address the second wrong direction autofocus pull, the "focus confirmation" rack at the end of the auto focus pull.

I'm not an engineer but I like to understand what is happening what, how, where, when and why.

At this moment the Auto Focus system for video looks the same as for stills. And for stills it works fast and well, accept in continuous high when it has a hard time keeping up with fast action. For video (akin to a very high number of stills) the AF is way to slow, and the focus confirmation pull is very distracting and jarring.

If DFD is able to measure the blur amount, and therefore can measure how far the subject is, the I think a reprogramming of the focus system can help to get rid of that jarring focus confirmation refocus.

I can think of this focusing system:

Focus pull situation:

1) DFD measures the amount of blurr, 2) compares it to the current focus distance, 3) estimates subject distance, 4) smoothly starts racking focus, 5) measures amount of blur half way racking focus, 6) checks the blur shift amount of the first and second measurement, outputs second focus target distance, 7) at the last part of the focus rack the focus speed eases off to arrive at the second estimated focus distance.

Continuous AF situations:

1) DFD measures the amount of blurr, 2) compares it to the current focus distance, 3) estimates subject distance, 4) smoothly starts racking focus, 5) measures amount of blur half way racking focus, 6) checks the blur shift amount and compares it to the first measurement, calculates subject movement, 7) rack focus to second focus target distance, 8) checks the blur shift amount and compares it to the previous measurement, calculates subject movement, 9) repeat 7 and 8 until no blur.

10) If subject leaves the frame maintain the current focus distance for x time before starting with 1 on the new subject in the assigned focus area.

Maybe DFD blur measurements are hard & slow, so having measurements while the camera is auto racking focus is harder to do, but I prefer a slower focus much over racking past the focus and racking back in video.

As a compromise DFD could be used to make a 1 time focus distance estimate, the focus racks smoothly (s curve) to the estimated distance, and stops (without racking past the estimate focus distance AND racking back). This would be good enough for a G85, and the more processing heavy higher DFD sample rate for the high end GH5. I must admit this all hinges on DFD accuracy in measuring the blur and estimating the subject distance.

What do you people think? Love to learn how the current contrast and DFD actually works. Love to hear your suggestions of how to improve AF.

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