7 votes
Accepted

How to Record a Dark scene without any Noise?

With low light levels your brightest signal will be close to the noise floor, so you only really have three options: a camera with better low light performance (although this can only take you so far)...
  • 2,290
7 votes
Accepted

SDI - serial digital interface

General SDI vs. HDMI Information SDI is easier to connect to other professional equipment than HDMI. It is an all purpose signal, as opposed to HDMI that was originally intended only to connect to ...
6 votes
Accepted

Smartphone vs camcorder

There are a few things you are missing, and a few more you just aren't fully appreciating how much of a difference the things you mentioned make. First, the S6 sensor is not over 1/2 inch, it is 1/2....
  • 19.2k
6 votes

Corrupt MP4 [recording interrupted]

I recently encountered this exact problem and I was able to repair the file using Untrunc, a program created specifically to solve this problem, as suggested by sparrowt on SuperUser: For this ...
  • 161
5 votes

Why does my still camera stop recording video on its own?

There are three main reasons that still cameras with video functionality have restrictions on the length of video they will shoot. The first and most common, as tomh pointed out is tax purposes. The ...
  • 19.2k
5 votes

Compare an original video with a transferred video?

There are quite a few programs that do so-called "full reference" measurement, i.e. comparing an original against a degraded signal: http://www.acceptv.com/en/products_vqa.php http://compression.ru/...
  • 955
5 votes

Why Camtasia always produce video with a low quality, even if I record in 1280p, for example?

The quality of the images you posted look completely normal to me for what you are doing. You're taking a screenshot and scaling it down. That means that anything drawn as a single pixel in the user ...
  • 2,146
4 votes

Equipment for documenting an adventure journey

I hate to burst your bubble, but if you are expecting video to be a similar level of intrusiveness to photography, you are almost certainly mistaken. Video is a much more work intensive process as it ...
  • 19.2k
4 votes
Accepted

What to do when camcorder angle does not cover entire area to record?

You're correct that you either need to place the camera farther away until the entire field is in view, or use a wide-angle lens adapter (not necessarily "fisheye" but wider). For indoor soccer, ...
  • 334
4 votes
Accepted

Blotchy, pale, reddish skin

I'm not being flip, but consider that not every problem has or needs a technical solution. Stage makeup can make you look any way you want to look on camera. No professional video host would go on air ...
  • 4,664
4 votes

Corrupt MP4 [recording interrupted]

Updated: this tool can now recover files from more sources. Try with recover_mp4_to_h264. It's a command line program, and will require a good reference file. Usage as indicated: recover_mp4 ...
  • 30.7k
4 votes

Digital TV SCTE 35 signal

To determine if a channel has SCTE-35, you will need to have the Program Map Table (PMT) recorded. From the PMT, you should be able to find the Packet Identifiers (PIDs) of all of the streams ...
4 votes
Accepted

Does using an S-Video output via a SCART connector improve the output quality of a VCR?

The answer is probably no, unless the SCART socket on your VCR is labeled specifically as "S-VIDEO". The fact that SCART connector has S-Video pins does not guarantee that your VCR provides ...
4 votes
Accepted

How do I improve sharpness of foliage and distant objects during video recording?

You are most likely observing Optical Aberration - see https://en.wikipedia.org/wiki/Optical_aberration and also https://en.wikipedia.org/wiki/Defocus_aberration. Haze is also likely a contributing ...
3 votes
Accepted

1080/25p bitrate 15.7Mbps vs 10.4Mbps

The higher bitrate will store more detail in your video. Most video cameras use file compression to throw away parts of the image that they think the viewer won't notice, in order to reduce the size ...
  • 6,609
3 votes
Accepted

How much recording time at 1080p30 on a 32GB card on a GoPro Hero (1)?

Have you try to go to the product web site and check? http://gopro.com/support/articles/recording-time-in-each-video-setting I know it is about Hero2, but i think the values will not change much. Be ...
3 votes

Low cost frame synchronized (genlocked) 3D stereo camera

You probably will not achieve a 100% perfect result with your setup. That you got them synced to a 1FPS accuracy is pretty amazing actually. Professional stereo setups use frame locking in hardware ...
  • 7,169
3 votes

How can I record audio & video synced with another audio file?

You are over thinking it. Edit a quick beep in before the audio starts on the song, play the song aloud while you are recording the drums. Hit one of your drums so that you can see and hear it ...
  • 19.2k
3 votes

Who owns the RAW video, audio and photo footage in case the client does not pay the agreed price?

Copyright law here says that the person who shoots the footage owns the footage. The only way to change this is if you sign a work for hire contract which says that the production company owns the ...
  • 31
3 votes

I got less quality video when I uploaded it on Youtube

It's impossible to maintain the original quality when you upload a video to youtube since youtube reencodes all videos. For a detailed explanation of why it does that, check my answer here. To ...
  • 5,392
3 votes

Recording me write my notes and my speech at my desk

First, you need a smartphone, such as iPhone or Android. Then you need something to hold it over your notes, such as this. Then you need diffuse lighting at or above the level of your smartphone, ...
3 votes
Accepted

What does an external video recorder like a Ninja offer?

If you record (typical AVCHD) sub-30 Mbps 4:2:0 video to a card and 220Mbps 4:2:2 video to an external recording device, you will be hard pressed to tell the difference when you view it back on ...
3 votes

Are there Tripods to film the bottom when writing on a paper?

There are a number of photo tripods that allow you to invert the center column. When inverted, the camera sits between all the legs and can be pointed down. Another tripod design has a center column ...
3 votes

How should I encode my 4K video stream?

As mentioned by @Mulvya, I think the issue is the "slow" preset. One option is encoding a compressed stream that is also lossless. For example, the x264 encoder can do this using "-preset ultrafast -...
3 votes
Accepted

How do you dramatically reduce the size of a video while keeping the quality as much as possible?

I'm not familiar with handbrake, but this is basically a math problem. First, you have to decide on a codec. One of the 'best' codecs in regards to quality/filesize-ratio as well as device-...
  • 5,392
3 votes
Accepted

Does 60 fps make sense for YouTube?

Google has supported 60fps video since 2014. YouTube has a page that talks about video formats, codecs, framerates, etc., here. It is up to the Browser and YouTube to negotiate what format, frame ...
3 votes
Accepted

Blackmagic setup: How do I record all cameras in a multicam broadcast?

You can use an SDI Distribution Amplifier ("DA") (one SDI input, and two or more SDI outputs) for each camera so you can "duplicate" the camera video to send to both the production switcher and to ...
3 votes
Accepted

How do I replace my organisation's event video camera?

Firstly, that camera has a 29 minute 59 second recording limit. If your speaker goes for longer than this it may not be suitable. Apparently this is due to some countries charging higher import duties ...
  • 13.5k
3 votes

How should I mic dance instructors when video recording?

There is another option that is good to know about, the Crown PCC-160 boundary mic. This is a standard mic to put at the edge of a stage to get good quality sound from actors in plays. "Supercardioid ...
  • 71
3 votes

Can I zoom in, manual focus, then zoom out?

To answer your second question: You can only use the zoom in, focus, zoom out if the lens is parfocal. Normally a parfocal zoom lens starts at 3000-4000 USD, thus I highly doubt the lens in this ...

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