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-   -   GH5 for video documentaries: some questions please. (https://www.dvinfo.net/forum/panasonic-lumix-s-g-gf-gh-gx-series/535138-gh5-video-documentaries-some-questions-please.html)

Cliff Totten December 29th, 2017 07:37 PM

Re: GH5 for video documentaries: some questions please.
 
The GH5 should out perform the smaller Sony 1 inch-type sensor in low light. I have not put my GH5 and NX80 or Z150 side by side yet but from using them I fully expect the GH5's larger sensor and same pixel count to beat them. Remember, the GH5 uses Sony EXMOR technology with that Sony IMX272 MFT sensor.

Somebody up top said it best though, your scene lighting and presentation will have WAY more influence on your overall quality than your camera.

Noa Put December 30th, 2017 02:53 AM

Re: GH5 for video documentaries: some questions please.
 
1 Attachment(s)
Quote:

Based on the video I didn’t see anything that jumped out
I have watched this comparison video in 4K on a 43 inch 4K pc screen and eventhough you can see youtube added compression you can see that the sony performs better, I have added one 4K screengrab and just watch the lights on top that have the advertising printed on it, second framegrab is a part of an image blow up to see the difference in detail.
Sony probably has some incamera sharpening going on because it looks there are some extra pixelation artifacts visible round edges which the canon doesn't show so you might get equal or better results if you sharpen the canon in post but since we don't have access to the files straight from the card we"ll never know. One thing I do see clearly is that the sony "appears" to be more detailed.
Also the stabilization difference is best seen on a big screen, it is a subtle difference but it is better on the Sony.

Noa Put December 30th, 2017 02:54 AM

Re: GH5 for video documentaries: some questions please.
 
1 Attachment(s)
The first image apparently didn't upload? Here it is again.

Ron Evans December 30th, 2017 08:25 AM

Re: GH5 for video documentaries: some questions please.
 
We unfortunately do not know how the autofocus systems were set up either so interesting test but not conclusive. Still if one needs 50/60P UHD there is only the one choice. The Canon looks a little over exposed in a lot of the shot. At the 800% gamma may need a little grading to look really good. I think there is also a test of the GH5 vs the XF400 of a train too. GH5 clearly sharper but again were they in autofocus and at what settings as both have a lot of controls for auto focus.

Pete Cofrancesco December 30th, 2017 08:29 AM

Re: GH5 for video documentaries: some questions please.
 
I can see the sharpness difference in the close up. In the second capture the gx blows out the signs more but as the video progresses this goes away. This has more to do with auto exposure. You want to give the edge to Sony that’s fine but nothing you’d be able to spot without a side by side.

I looked up the pricing I was shocked how expensive the GX10 is for a consumer camcorder with that quality of video.

Ron Evans December 30th, 2017 09:56 AM

Re: GH5 for video documentaries: some questions please.
 
Yes you are paying for 50/60P UHD and the extra processing that takes with cooling etc not needed for HD or UHD30P.

In the video you can also see that the GX10 has a wider field of view too. We have no idea what the auto focus was set for on either camera as they both have many options and that goes for the exposure settings too. I do not think either are point and shoot cameras so need to be set up properly to get the best out of either of them. Putting them side by side in auto is a nice test but far from a useful comparison as to capabilities.

The GX10 may be expensive but the only one that does 50/60P UHD at anywhere near the price. A GH5 with lens will be more expensive. A better camera for sure but also has it difficulties with auto focus etc !!!

Adriano Moroni January 1st, 2018 05:22 PM

Re: GH5 for video documentaries: some questions please.
 
Out of curiosity I need to ask some questions:
1) If I had to buy the new Sony a7RIII and if I don't make interviews, iis it sufficient that mic to record the daily life sound?
2) If I need a mic and a light on the camera, what should I do? Do I have to add a bracket on it?
It would be a big inconvenience.

Pete Cofrancesco January 1st, 2018 07:06 PM

Re: GH5 for video documentaries: some questions please.
 
That isn’t a camera you would want. The best way to answer all your questions is go out and rent or borrow any dslr or mirrorless for a week. If you still like filming with one then come back and talk.

Bryan Worsley January 1st, 2018 09:01 PM

Re: GH5 for video documentaries: some questions please.
 
If you've got that kind of budget (not accounting for lenses), 4K/50p is a must, and you don't need log gamma profiles for stylized/filmic grading (you didn't mention it as a priority, so I'm assuming not) I'd seriously look at the Canon GX10, as Ron has been intimating. Not much out there in terms of raw video samples available for download (for the GX10 or AX700) but most big camera stores are happy to let you record your own if you bring an SD card. Probably the best way to reach a conclusion as to which has the better quality for your needs. Personally I think the videos on your YouTube channel look great.

As for audio. I don't know how the built-in mic on the GX10 compares with the AX100/700. If it's anything like the Canon HF-G40 (which I suspect it is) it will certainly be better than any dslr/mirrorless but yes, for decent quality audio (befitting your video) you will really need to consider an external mic. For recording 'daily life sounds' you couldn't go wrong with a Rode Stereo Videomic Pro (with the Rycote lyre suspension). On the GX10 you'd have the option of mounting on the forward positioned cold shoe or the rear positioned mini-advanced hot shoe using an adapter. On the AX100/700, you only have the one multi-interface shoe and always need an adapter for third-party accessories.

To manage an external mic and on-camera video light, yes you would really need to add a bracket of sorts, whatever camera you choose. For mounting an LED panel and RSVMP on my HF-G30 I use a (Rycote) shoe extension bar attached transversely to the cold shoe mount. For hand-held shooting, it's just manageable for short periods. The GX10 is a bit larger and heavier than the HF-G30/40 though. Upgrading to the XF-400/405 would give you that detachable handle, professional audio inputs and one cold shoe, but sacrifice the mini advanced hot shoe.

Anyhow, just my opinion, if I were in your shoes.

How have you been managing audio and on-board lighting (as needed) on the AX100 until now ?

P.S. Perusing the user manual I'm surprised to see that Canon omitted Highlight Priority mode on the GX10. I wonder why ? When I checked out the HF-G40 last year I wasn't that enamored with the Wide DR 'look' - too much noise in the shadows and softening of fine detail for my taste - maybe it's improved on the GX10 but it's hard to tell from that YouTube video. Highlight Priority mode though looked like it could be very useful in high contrast situations. No Cinema (gamma) Mode either, but they added a Monochrome 'look'. So, not much latitude there for stylized grading, but for documentary work and travelogues, do you really need that ?

Sorry to digress from the original thread topic.

Adriano Moroni January 2nd, 2018 01:33 AM

Re: GH5 for video documentaries: some questions please.
 
Ron gave me very good suggestions. I searched info about Canon GX10 and I noticed it is a good camera. It has many better options than my Sony AX100, but its image quality is not better than AX100. I read that someone bought it and regretted the poor quality of the GX10. For that reason I'm considering the Sony a7RIII . But I am still not convinced in the purchase it because it is not easy to use it. But I NEED A BETTER IMAGE QUALITY THAN AX100. I have also considered much more expensive, bigger and heavy cameras but I'm thinking they aren't the right cameras for me because I will travel alone and I need light cameras. It is hard for my to test GX10 in some stores for now.
At this point I will stay at the window waiting for a better videocamera.

Sony AX 100 has a good mic. I don't have to add any external mic. to record 'daily life sounds'. I am satisfied with it. With that mic. I have only one problem: sometime the wind that disturbs the sound.

Ron Evans January 2nd, 2018 09:10 AM

Re: GH5 for video documentaries: some questions please.
 
Can you define better image quality for us ? Do you mean resolution, sharpness, colour. I expect it would mean more work for you in shooting and editing to get anything substantially better than the AX100. The obvious way is to shoot with a log curve and then grade in post. More confusing to shoot correctly ( certainly not a quick point and shoot approach as you would need to be careful with exposure) and then a lot of work to get the effect you want in editing/grading.

The new Sony cameras allow you to shoot in log. However if you expect to auto shoot and then view output they will likely all perform similar to your AX100. I do not think you will find a camera that automatically shoots better video than the AX100 in the way you shoot. You may get the results you want by learning to grade the video you already get from the AX100. I know you edit with EDIUS as do myself but to really grade it has limitations compared to Blackmagic Resolve which could totally change the look of your videos. $299 for the full Studio version of Resolve is a lot less than a new camera !!!

Adriano Moroni January 2nd, 2018 09:36 AM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Ron Evans (Post 1940027)
Can you define better image quality for us ?

Yes, I mean resolution, sharpness, colour, etc. all those things that let you to watch a better video. I already know your answer. jejeeje I have to know and configure better my AX100. You are prefectly right.
I will do it surely.
Much time ago (maybe you don't remember), you sugegst me to buy Sony DSC-HX20V camera. I will thank you forever for that advice. I bought it and I went to Sicily. I used that camera is auto mode only and I made a very good video, not for the video content (I was with my friends on holiday) but for the image quality it gave me. With my AX100 I never got a such very good image quality in 4K. For that reason I was thinking to buy an even better camera than Sony DSC-HX20V. I like a lot those colours. But you take me in the real world and you are right again!!

Ron Evans January 2nd, 2018 12:34 PM

Re: GH5 for video documentaries: some questions please.
 
The AX100 for you in PAL will only shoot in 25P UHD so if you prefer a faster frame rate ( as I do ) then it will not look as good to you. If that is your issue then either the GX10, XF400 or moving to a GH5 is your answer as none of the smaller Sony's shoot in 50/60P UHD and why I moved to the GH5. Would love the Sony FS7 the first in the Sony line to shoot UHD 50/60P other than the old AX1 or Z100 ( that I think use the same sensor as in the HX20/30V !!! ) but the FS7 is just too expensive.

The HX20V I recall has a sharpened image and you could sharpen up your videos in EDIUS. You might want to try sharpen filter at about 15 and see what you think. It will add a little contrast as well as sharpen the edges. Too much and it will look fake !!! Add some chroma ( about 3 ) in the colour filter and the image should pop a little more.

Focus in UHD is very critical and the slightest out of focus is very clear. Takes more time to ensure the shot is in focus when shooting UHD.

Bryan Worsley January 2nd, 2018 03:45 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Adriano Moroni (Post 1940025)
Sony AX 100 has a good mic. I don't have to add any external mic. to record 'daily life sounds'. I am satisfied with it. With that mic. I have only one problem: sometime the wind that disturbs the sound.

If you are happy with the built-in mic, you could get one of these to combat wind noise:

https://www.bhphotovideo.com/c/product/315567-REG/Rycote_055401_Gustbuster_Camcorder_Windjammer.html/BI/2855/KBID/3801

Quote:

Originally Posted by Ron Evans (Post 1940027)
$299 for the full Studio version of Resolve is a lot less than a new camera !!!

And the free version for even less than that ! Only thing if Adriano did go for a Pana GH5 is that he'd need the Studio version to import native 4K 10-bit 422 clips. No problem importing Sony XAVC/S clips with the free version.

Quote:

Originally Posted by Ron Evans (Post 1940035)
The AX100 for you in PAL will only shoot in 25P UHD so if you prefer a faster frame rate ( as I do ) then it will not look as good to you.

I don't own a 4K capable camera, so can't really comment further. I just wonder though if Adriano were shooting 4K/30p on an AX100 whether he would have such a compelling desire for 4K/50p. Of course, it's not going to be as fluid as 50p/60p, but from what I've seen the cadence of 4K/30p on the AX100 copes well with moving subjects shot from static positions and slow pans. Take these two videos put up by Mark Rosenzweig a couple of years back:


As always with Mark's excellent showcase videos, the original 4K footage is there for download. I wonder if he has plans to do a series on the Canon GX10 at some point - once he's done with the Z Camera E1 ?

Ron Evans January 2nd, 2018 04:13 PM

Re: GH5 for video documentaries: some questions please.
 
Depends what ones eyes are sensitive to . I can tell the difference with slow frames rates immediately and prefer the smoother flow of 60P. I think that there is also some data that shows that with UHD HDR 120fps may be a better solution too specially for fast movement. I think he is shooting UHD25P on his AX100. I have an AX100 and AX53 as well as my GH5, had a FDR-AX1 that shot UHD 60P too. To me there is a big difference to the point I only use the AX100 and AX53 as HD cameras at 60P.

Resolve Studio also enables better use of any GPU's in the system and playback is considerably improved. Has a lot of other features not in the free version too. Definitely worth the price.

Adriano Moroni January 2nd, 2018 04:49 PM

Re: GH5 for video documentaries: some questions please.
 
Unfortunately Sony AX100 doesn't have neither 4K/30p but only 4K/25p. ;)

Bryan, unfortunately AX100 has the mic. on it and not in front of it.

Mark Rosenzweig January 2nd, 2018 06:18 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Adriano Moroni (Post 1940049)
Unfortunately Sony AX100 doesn't have neither 4K/30p but only 4K/25p. ;)

1. The videos posted just above were shot on the AX100 in UHD 30P, not 25P.

2. 25P is not a standard in the US. There are no camcorders sold in the US which can only shoot 25P if they offer 25P at all.

3. I have shot UHD 30P, 60P and even 120P (my FS3700+Shogun Inferno). I fail to see that significant a difference in motion played at normal speed. I can see 24p affects movement unnaturally (the film look).

I think the main advantage of 60P and 120P is to make slow motion clips. I think slow motion clips are very nice, when used sparingly in a video. Noa has offered some nice slo-mo examples from 60P video.

Ron Evans January 2nd, 2018 07:33 PM

Re: GH5 for video documentaries: some questions please.
 
If you see the film look of 24P then 25P is very close so will be significant to the look of 50P. Adriano is in Italy so AX100 there is PAL frame rates.

Bryan Worsley January 2nd, 2018 10:13 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Adriano Moroni (Post 1940049)
Unfortunately Sony AX100 doesn't have neither 4K/30p but only 4K/25p. ;)

I appreciate that, but you could always consider changing your European (PAL) model for a North American (NTSC) model, especially if you are shooting for web distribution only. Just a thought.

Quote:

Originally Posted by Adriano Moroni (Post 1940049)
Bryan, unfortunately AX100 has the mic. on it and not in front of it.

That particular product image shows just one configuration. You can attach it any way you like with the adjustable straps as long as the 'windjammer' pad is secured snugly over the entire microphone grille:

https://www.dvestore.com/rycote-055401-gustbuster/

And I think it probably would fit over the AX100 mic.

Bryan Worsley January 2nd, 2018 10:33 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Mark Rosenzweig (Post 1940055)
1. The videos posted just above were shot on the AX100 in UHD 30P, not 25P

And in Shutter Priority mode at 1/60sec (at least the Baseball one) according to your Comment under the video.

Quote:

Originally Posted by Bryan Worsley (Post 1940045)
As always with Mark's excellent showcase videos, the original 4K footage is there for download. I wonder if he has plans to do a series on the Canon GX10 at some point - once he's done with the Z Camera E1 ?

Any thoughts on that Marc ? I'd like to check out the GX10 myself but none of the camera stores in my locale have it in stock as yet.

Mark Rosenzweig January 2nd, 2018 10:36 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Bryan Worsley (Post 1940065)
And in Shutter Priority mode at 1/60sec (at least the Baseball one) according to your Comment under the video.

Correct. The built-in ND filters were essential.

Bryan Worsley January 3rd, 2018 11:05 AM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Ron Evans (Post 1940046)
Resolve Studio also enables better use of any GPU's in the system and playback is considerably improved. Has a lot of other features not in the free version too. Definitely worth the price.

Granted, Noise Reduction would probably be the first standard node in a grade of log 4K footage coming off these cameras, the Pana GH5 included ;>) but the free version is more than adequate for my present needs - mostly post-edit grading of HD material - I use other methods for noise reduction and deinterlacing as and when required. Thing about the Studio version also is that there is no fully featured trial mode for download and BMD have no plans to change that - they view the free version as the trial version. My advice for anyone who has not used Resolve before would be to do just that - try the free version first and if you like it and have need of these premium features, go for the Studio version.

Yes you need the Studio version for import of the native Pana GH5 10-bit 422 clips, but you can always pre-transcode to an acceptable intermediate 10-bit 422 input format - Grass Valley HQX included.

Bear in mind also that the quality of Resolve's native H264 encoder is nothing to write home about, so you need to export in an intermediate format for encoding externally with x264, or whatever. GPU-accelarated H265/HEVC export is now available but only in the Studio version - I have no perspective on the quality. Perhaps Ron does ? Resolve is heavily GPU processor dependent and Adriano would need to ensure that his hardware is up to it, especially for native 4K/50p processing. Edius is much less demanding on hardware - probably the most CPU-efficient 'pro-level' NLE out there.

Bryan Worsley January 3rd, 2018 12:19 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Mark Rosenzweig (Post 1940067)
Correct. The built-in ND filters were essential.

Right, which makes for a consistent 'filmic' ('near 180 deg. shutter angle') motion blur, in theory - as far as one can apply these mechanical concepts to contemporary digital image processing.

What about the other 'Dancers of Shenzhen' video ?

Mark Rosenzweig January 3rd, 2018 12:44 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Bryan Worsley (Post 1940081)
Right, which makes for a consistent 'filmic' ('near 180 deg. shutter angle') motion blur, in theory - as far as one can apply these mechanical concepts to contemporary digital image processing.

What about the other 'Dancers of Shenzhen' video ?

Same, 1/60th shutter, use of ND when necessary.

Bryan Worsley January 3rd, 2018 01:16 PM

Re: GH5 for video documentaries: some questions please.
 
Thought so. Thanks.

Ron Evans January 3rd, 2018 04:14 PM

Re: GH5 for video documentaries: some questions please.
 
Unfortunately Brian, neither the free version of Resolve that I used for over a year or my current Studio version sees EDIUS HQX or HQ files. If you have found a way I would love to know as I use HQX to go between Vegas and EDIUS as 8.5WG is my main editor.

Biggest change I saw when moving to Studio was a substantial performance increase. I have yet to use any of the extra features but do intend to use the face recognition and colour management feature. Lots of info to look at the differences so working with the free will give most of the work flow to a user. Studio is just faster and a few more feature but for $299 is a steal I think.

EDIT I should clarify HQX .avi will not be seen by Resolve but the Quicktime version of HQ and HQX .mov will tranfer just fine. Not sure if you need Quicktime on your PC for this to work I do but many have removed Quicktime from their PC's.

Bryan Worsley January 3rd, 2018 05:24 PM

Re: GH5 for video documentaries: some questions please.
 
Your edit bumped my reply; yes, you're right you need to remux as .mov files. I don't use Edius - only ran the trial - and I'd have to install the GV Canopus codecs again to encode some HQX files (outside of Resolve, using VirtualDub FilterMod) to test. IIRC, when I checked this out a while back I used ffmpeg to rewrap the avi encodes to mov. Straightforward enough with the CLI:

ffmpeg -i {Directory Path}/File_Name.avi -vcodec copy -acodec copy {Directory Path}/File_Name.mov

Edit: And I'm pretty sure there are ffmpeg front-end 'converters' out there that give that option - not sure which, don't use them myself. VirtualDub_FilterMod will do it also (using direct stream copy):

https://sourceforge.net/projects/vdfiltermod/

Actually I do have Quicktime 7.7.8 on my PC (Win 10, 64-bit) installed with a custom installer:

https://tommynation.com/install-quicktime-windows-10/

Adriano Moroni January 4th, 2018 10:54 AM

Re: GH5 for video documentaries: some questions please.
 
Does someone is using Zhiyun Crane with a camera or videocamera? Do you think it is an important option to make videos?

Mark Rosenzweig January 4th, 2018 11:04 AM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Adriano Moroni (Post 1940121)
Does someone is using Zhiyun Crane with a camera or videocamera? Do you think it is an important option to make videos?

Yes.


You can mimic slider shots.

You can mimic dolly shots.

You can follow subjects around.

You can handhold for static shots with zero shake, like you had a tripod.

A gimbal expands your video quality more than any difference across cameras can.

Paul Cronin January 4th, 2018 11:56 AM

Re: GH5 for video documentaries: some questions please.
 
Nice Mark,

Is that with the Zhiyun Crane V2
https://www.bhphotovideo.com/bnh/con...2855/KBID/3801

Looking at adding this to my on the way GH5.

Mark Rosenzweig January 4th, 2018 12:13 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Paul Cronin (Post 1940124)
Nice Mark,

Is that with the Zhiyun Crane V2
https://www.bhphotovideo.com/bnh/controller/home/BI/2855/KBID/3801

Looking at adding this to my on the way GH5.

Thanks. No, the Crane M, for smaller cameras. Ziyun gimbals are very good. Excellent battery life is key, so you dont have to worry about power.

Paul Cronin January 4th, 2018 12:15 PM

Re: GH5 for video documentaries: some questions please.
 
Got it, I am still deciding on the best option but the one above looks nice for the GH5.

Getting nailed in Rhode Island, how is New Haven? Lived in Madison years ago.

Adriano Moroni January 4th, 2018 12:21 PM

Re: GH5 for video documentaries: some questions please.
 
I think it is good:
https://www.amazon.it/Zhiyun-Handhel...s=crane+gimbal
In your opinion can I use the gimbal in amost 100% of my shots?
I have just noticed it is hard to use the LCD screen of the camera when you use it.

Mark Rosenzweig January 4th, 2018 12:21 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Paul Cronin (Post 1940126)
Got it, I am still deciding on the best option but the one above looks nice for the GH5.

Getting nailed in Rhode Island, how is New Haven? Lived in Madison years ago.

Locked in too, but I escaped this morning by train - to Philadelphia!

Paul Cronin January 4th, 2018 12:23 PM

Re: GH5 for video documentaries: some questions please.
 
Thanks Adriano, for the input. It does look like a nice option at a decent price.

Mark, good move. We are already up to 3' drifts with another 15 hrs of snow. Ah, New England.

Mark Rosenzweig January 4th, 2018 12:27 PM

Re: GH5 for video documentaries: some questions please.
 
Quote:

Originally Posted by Paul Cronin (Post 1940126)
Got it, I am still deciding on the best option but the one above looks nice for the GH5.

Getting nailed in Rhode Island, how is New Haven? Lived in Madison years ago.

Locked in too, but I escaped this morning by train - to Philadelphia!

Adriano Moroni January 6th, 2018 03:32 AM

Re: GH5 for video documentaries: some questions please.
 
In my shoots I always use the preset for White balance in a sunny day. I'm thinking to change my way to do White balance. Now with my Sony AX100 I'd like to do it manually. How do you do it? Is it good to do White balance pointing the videocamera at a gray cardboard with 18% reflectance?

Noa Put January 6th, 2018 04:53 AM

Re: GH5 for video documentaries: some questions please.
 
I use a expodisc to set my whitebalance, I just put it on the lens, point my camera at the lightsource and make the whitebalance. What I like about the ax100 is that it will show the kelvin value after I make this manual wb so I can dial that kelvin into my other camera's.

Adriano Moroni January 6th, 2018 05:31 AM

Re: GH5 for video documentaries: some questions please.
 
Ohhh, good news. Is there for the AX100 lens?

Noa Put January 6th, 2018 10:27 AM

Re: GH5 for video documentaries: some questions please.
 
https://www.expodisc.com


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