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A comment on V002 Camera Live – Zoom with Your DSLR as a Webcam via USB. Parent comment

Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by kbouck on Friday June 05, 2020 @03:36PM (#23432904)
Elgato sells other capture cards (eg. HD60), which still seem available.

I recently bought a raspberry pi hi quality camera (and lens) to tinker with, and was able to connect it to my mac via pi->hdmi->capture-card to make a nice webcam view with the bokeh effect.

the total cost of this example does add up, but still cheaper than a DSLR setup.

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Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by stragies on Friday June 05, 2020 @03:45PM (#23433040)
If you use the usb gadget mode of the raspberry pi to present the PI as a USB WebCam, you can forego the HDMI-connection, and thus the need for the HDMI capture card.
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Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by lurquer on Friday June 05, 2020 @04:21PM (#23433502)
I've been trying to get a FPV drone camera feed into my Windows 10 computer so OpenCV can muck around with it.

OpenCV easily recognizes Webcams, but sucks at picking up 'video adapter' kinda stuff. (That is, I'm going to be using an RCA to USB dongle, such as EasyCap.)

If you can 'trick' OpenCV into thinking a webcam is attached at the USB, everything is golden.

Can you describe this raspberry pi method of 'presenting' the device as a USB WebCam? That sounds promising...

edit: Forgot to mention OpenCV is part of a c++ 64bit program I'm writing.

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Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by kbouck on Saturday June 06, 2020 @01:26PM (#23440785)
here's a couple of links discussing how to set up and working through the issues.

http://www.davidhunt.ie/raspberry-pi-zero-with-pi-camera-as-...

https://www.raspberrypi.org/forums/viewtopic.php?t=148361

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Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by sambroner on Friday June 05, 2020 @03:39PM (#23432952)
Can you share more about this? What’s a capture card? And how did the latency turn out?

I’m interested!

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Re:V002 Camera Live – Zoom with Your DSLR as a Webcam via USB by kbouck on Friday June 05, 2020 @05:07PM (#23433983)
capture cards are devices primarily intended for game streamers to give your computer an hdmi input to stream/record games from a game console, but are also useful for other purposes such as turning your dslr into an expensive webcam.

i have this one: https://www.elgato.com/en/gaming/game-capture-hd60-s-plus

you can find others from magewell

i don't have measurements but the latency was indistinguishable from a directly connected webcam.

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