Difference between revisions of "How to capture video"

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Sometimes you don't want to have a computer involved while recording.
Sometimes you don't want to have a computer involved while recording.
=== VHS ===
[https://en.wikipedia.org/wiki/VHS VHS wikipedia]
* Takes composite input
* Machines are currently pretty much free to get started with
* Records to VHS tapes
* Tapes are cheap
=== S-VHS ===
[https://en.wikipedia.org/wiki/S-VHS#:~:text=Increased%20luminance%20bandwidth%20produces%20a,height%20%E2%80%93%20versus%20VHS's%20240%20lines. S-VHS wikipedia]
* Takes composite / svid input
* Records to S-VHS and VHS tapes
* [https://www.youtube.com/watch?v=x7OW2P7o7qM demo of vhs vs shvs]
=== Rescan ===
The art of pointing a camera at a screen
[https://www.youtube.com/watch?v=ptl9acf1zzE&list=PLj0oGGYnckXaS9fSQeBrwH7EXEh8Pagfp First rescan tests]
* This is a playlist trying out rescanning at different resolutions (480,720,1080,4k)
[https://www.youtube.com/watch?v=yVW72TMcLow&list=PLj0oGGYnckXbKY8ukfjZwL-v5XwLoiOvu 4k Rescan playlist]
[https://www.youtube.com/watch?v=cISY-7gEFms this video discusses some of the points you’ll need to address when rescanning a CRT]
* Things of Note – set camera to 1/60 (NTSC) / 1/50 (PAL) shutter speed – turn off lights in room and/or utilize/[https://www.youtube.com/watch?v=x2X2jw2JUhE make] a [https://www.bhphotovideo.com/c/product/742792-REG/Marshall_Electronics_V_H50_V_H50_5_Monitor_Hood.html/?ap=y&ap=y&smp=y&smp=y&lsft=BI%3A514&gclid=Cj0KCQjwuL_8BRCXARIsAGiC51DbQ2BycTmPfE6vB2tyI1GUL9rxAnJzhfDmxqpKtXYfNqszw0JmTuMaAmMREALw_wcB monitor hood] – adjust back light on monitor if possible otherwise adjust brightness/iso until a desirable image is found. – on my camera in a dark room an iso of 100/200 is necessary for rescanning
<div class="mw-collapsible mw-collapsed toccolours" style="width:300px;margin-top:10px">
'''Cameras used for rescan:'''
<div class="mw-collapsible-content">I’m using a mevo plus (only because the place I work for bought one and it isn’t getting used currently) I would '''not''' really recommend this camera unless you understand how it works as it is weird… that being said a newer version has been released so this version is fairly cheap on ebay now.</div>
</div>
=== Black Magic hyperdeck shuttle 2 ===
[https://www.bhphotovideo.com/c/product/841023-REG/Blackmagic_Design_HYPERD_PT2_HyperDeck_Shuttle_2_SSD.html Black magic hyperdeck shuttle 2]
* Takes SDI / HDMI input
* Rechargeable
* Records to SSDs
* [https://www.youtube.com/watch?v=5vdLUcXjMRQ demo of LZX system]
<div class="mw-collapsible mw-collapsed toccolours" style="width:300px;margin-top:10px">
'''Details:'''
<div class="mw-collapsible-content">In order to get a useable input into the hyperdeck shuttle from the LZX visual cortex component output use the [https://www.extron.com/product/rgbhdmi300a Extron 300a] to get the video into the YUV colorspace.</div>
</div>
=== AV &gt; microSD ===
[https://www.ebay.com/itm/Digital-Video-Recorder-With-Micro-SD-Input-RCA-A-V-Loop-Thru-HDMI-output/312205781255?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649&fbclid=IwAR3bxmNLldqb3Yl6cxWxTTVcHkvnbODYv6SGW7T2U-bGA1aK9JbjvBHrcQQ Composite to microSD]
* Composite input
* Composite + HDMI outputs (only one at a time)
* saves as .avi
* [demo with raspberry pi synth](https://www.youtube.com/watch?v=IEjp-XkEkXs&amp;

Revision as of 16:44, 14 August 2021

The goal of this page is to help describe different methods of capturing video to some kind of medium. If you see something that isn't on here, feel free to add it! Initial info is from this post on the scanlines forum.

Stand-alone

Sometimes you don't want to have a computer involved while recording.


VHS

VHS wikipedia

  • Takes composite input
  • Machines are currently pretty much free to get started with
  • Records to VHS tapes
  • Tapes are cheap


S-VHS

S-VHS wikipedia


Rescan

The art of pointing a camera at a screen

First rescan tests

  • This is a playlist trying out rescanning at different resolutions (480,720,1080,4k)

4k Rescan playlist

this video discusses some of the points you’ll need to address when rescanning a CRT

  • Things of Note – set camera to 1/60 (NTSC) / 1/50 (PAL) shutter speed – turn off lights in room and/or utilize/make a monitor hood – adjust back light on monitor if possible otherwise adjust brightness/iso until a desirable image is found. – on my camera in a dark room an iso of 100/200 is necessary for rescanning

Cameras used for rescan:

I’m using a mevo plus (only because the place I work for bought one and it isn’t getting used currently) I would not really recommend this camera unless you understand how it works as it is weird… that being said a newer version has been released so this version is fairly cheap on ebay now.


Black Magic hyperdeck shuttle 2

Black magic hyperdeck shuttle 2

Details:

In order to get a useable input into the hyperdeck shuttle from the LZX visual cortex component output use the Extron 300a to get the video into the YUV colorspace.


AV > microSD

Composite to microSD