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Does David support 4k camera?

Problems, solutions and discussion about scanning with a video projector and stripe patterns.

Does David support 4k camera?

Postby Curiousjeff » Sun Oct 04, 2015 5:23 pm

The quality of David with Blackmagic Intensity Pro 4k and the Nikon D5200 is amazing.

With this card, the Nikon appears as a regular webcam.

I am thinking now about a 4k camera (Panasonic FZ1000, GH4, etc...).

Does David support "4k webcam" resolution?

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby micr0 » Mon Oct 05, 2015 2:28 pm

Jeff. Are you using the Nikon currently? Isn't the 5200 a 24mp camera? Is it that it is not transmitting a 4K stream and the Panasonics do?

I'm a little confused.

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Re: Does David support 4k camera?

Postby micr0 » Mon Oct 05, 2015 3:38 pm

After a little research I think I see what you are going for. The 5200 does clean HDMI just not at 4k, yes?

Also the Panasonic seems to have a number of similar cameras that do have 4k clean HDMI but without more reading I don't see the difference for our purposes between the FZ100, GH4 or the GX8 save for price.

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Re: Does David support 4k camera?

Postby Curiousjeff » Mon Oct 05, 2015 4:41 pm

Hi Micr0,

The Canon 60D hdmi output  has 1620x1080 pixels with added black stripes on both sides. The output resolution is 1920x1080i@30 (the "i"  is the problem).

The Nikon D5200 HDMI is 1920x1080p@30
The Nikon D5300 HDMI is 1920x1080p@60 (and other speeds).

I am amazed by the quality of the Blackmagic +Nikon D5200. Very high resolution scans,  fast (15 seconds per scan). No artifacts,  smooth surface. See my test in another post. Sorry, cannot provide link righ now.

Regarding the difference between the GH4 and the FZ1000

GH4 chip is 17.3 x 13.0
FZ1000 chip is 13.2 x 8.8 mm

You can change glass on the GH4.

In photography, bigger chip and better glass = higher detail

Probably, the FZ1000 will be good enough, but this discussion only makes sens if David accepts 4K resolution.

David team, please let us know.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Curiousjeff » Mon Oct 05, 2015 6:04 pm

Micr0,

I was not aware of the GX8 or the FZ300, both 4K.

Thanks for the info.

This is becoming more and more affordable :)

What will happen when we have cheap 4k projectors?

Just hope those various 4k resolutions are/will be supported by David.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Curiousjeff » Mon Oct 05, 2015 9:36 pm

Sven,

Does David accept these resolutions using Directshow?

4096x2160 (24p)
3840x2160 (30p/25p/24p)

Thanks,
Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Curiousjeff » Sat Oct 10, 2015 4:03 pm

I had a Panasonic FZ1000 on loan.

It worked fine with DLS and Blackmagic HDMI capture card in 1920x1080 @ 24, @ 25 and @ 50 frames.

The Blackmagic Intensity Pro 4k was not able to capture the 4k signal (UHD 3840 x 2160 @ 24 or 25fps). So I was not able to test 4k with David.

Side note: Bridge cameras are not convenient. Since the lens retracts, you need to calibrate each time. Also the F-stop was limited (F11) and less depth of field with the smaller sensor compared to DSLR.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby mr_cg » Sat Oct 10, 2015 5:45 pm

@ Curiousjeff
I like the idea with the HDMI capture card (BlackMagic Intensity Pro).
Do you know which DSLR's support high definition HDMI output (1980x1080 or even higher)? Mirrorless system camera would be appreciated.
I have canon DSLR but the HDMI-output is - unfortunately - not in full-HD.
DAVID4 Pro v4.3.6 (64bit) - david-cam-3.1-m - IDS UEYE UI-1540-M - Canon EOS 600d (Canon Lens: EF-S 18-135 IS) - Acer K135i Projector + 37mm Close-Up Lens
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Re: Does David support 4k camera?

Postby Curiousjeff » Sat Oct 10, 2015 6:34 pm

@mr_cg
As mentionned previously, you need to make sure that the camera has the capability to output "clean" HDMI. Also, the HDMI output should be "progressive"

Unfortunately, this information is not always easy to find.

The card is a PCI-Express: Blackmagic Intensity Pro 4k

They also have a external version with USB3 but limited to FullHD.

It seems that for the moment, 4k does not work anyway, except with their own camera. I will need to wait for a software upgrade.

To answer your question, from what I have read;

FullHD
Nikon D5200, D5300, D5500 and probably other models above
Canon 5D Mark III

4K
Panasonic GH4, FZ1000, GX8, FZ300, 4k camcorder
Sony A7S, A7S II, 4k camcorder
Blackmagic Micro Studio camera 4k
....

The Blackmagic card was a little tricky to get working with David but I am know happy with the result. It's high resolution and fast.

For the camera, the best is to be able to test for yourself.

Final thought: I have the impression that David will accept a 4K signal but this needs to be confirmed by David team or someone who has succeeded.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Sven » Mon Oct 12, 2015 9:30 am

Curiousjeff wrote:Sven,

Does David accept these resolutions using Directshow?

4096x2160 (24p)
3840x2160 (30p/25p/24p)

Thanks,
Jeff

hi Jeff,
Yes DAVID supports "any" resolution. But you'll still have to try if it's really compatible because of other details, like color format... Some camera just aren't compatible...
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Re: Does David support 4k camera?

Postby Cedric » Wed Nov 18, 2015 10:31 am

Hello,

Do you know if the Blackmagic card is working with a Canon 70D
Is it possible to have a clean HDMI video from this camera? if not, is Magic lantern can solve this?

Thank you for your help

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Re: Does David support 4k camera?

Postby Curiousjeff » Wed Nov 18, 2015 10:56 am

The Intensity Pro 4K BlackMagic should capture the HDMI signal (I say "should" because the software is a little buggy)

Mine works with the Canon 60D, the Nikon D5200 and the Panasonic Z1000 (but not in 4k when I tested). I had problems with my son's Samsung pocket camera. The signal was breaking all the time.

I don't know regarding the "clean HDMI out" of the 70D. Magiclantern is not yet available on the 70D

Supported Cameras: 5D2, 5D3, 6D, 7D, 50D, 60D, 500D/T1i, 550D/T2i, 600D/T3i, 650D/T4i, 700D/T5i, 1100D/T3, EOS M

In progress: 70D

The main problem for me for the moment is that nearly all Canon cameras output in 1080i (except 5D Mark III). This cannot be changed by MagicLantern.

I believe this is causing interference in the scan.

If you already have the camera, try to plug into a monitor or TV through HDMI and see what signal is coming out.

If you discover that the output is 1080p, please let me know.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Curiousjeff » Wed Nov 18, 2015 12:47 pm

From Canon web site:

70D
Video Out Terminal

HDMI Type C (Switches automatically to suit the resolution)

Video output: 1080/60i, 1080/50i, 480/60p, 576/50p

So no 1080p.
In that case, I doubt it has a clean HDMI out.
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby Curiousjeff » Sun Jan 17, 2016 11:10 am

Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: Does David support 4k camera?

Postby micr0 » Wed Jan 27, 2016 4:09 pm

What was the best frame rate you ultimately got with the Nikon at 1080p?

Also: Are you using a fixed focal length lens? I'm assuming zoom lenses should be less problematic for DSLR's in that they are much higher quality than the C-mount zooms we have been told to stay away from.


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