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| Another Limit for my $35 camera by Commander Tansin A. Darcos 02/07/2016, 1:56am PST | ||||
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| I decided to do a test on my video camera - the ones I use to record my cooking (and other) videos that I purchase for around $35 including shipping - to see how long it can record on a full charge. It has a 16 GB card, the maximum it can handle, and uses a rechargeable LI-ON pack battery that is charged through the micro USB socket.
So, I go out to the living room, focus it on the clock, aim it so that it just shows the clock face and leave it. This was around 3 in the morning, and I fall asleep. The next morning around 11 I woke up, the camera was dead, so I bring it in my room, open the access slot on the bottom, remove the SD card, then plug the camera into a USB plug, and insert the card into the built-in SD slot on my other computer. I find approximately 4 files with the same date as when I was taping (the clock on the camera was set), one file of 4,144,636K one of 4,144,316K, one of 1,883,533K, and a short one of about 12 seconds in length I did for practice I subsequently deleted so I don't know its size but I can figure it was probably in the 100-200K range. (I'll have better numbers later). The properties tab for both of the 4144 K files shows them as 3.95 GB, so clearly what the camera is doing is keeping the file sizes below the maximum a 32-bit operating system can handle, 4GB - 2**32-1 - so the files can be handled by anyone. I also note the camera stopped the video for each file, then started the next file automatically, and essentially kept filming until it ran out of battery capacity. The video is HD, 1280x720 at 30FPS, and the two 4gig files are 44:43 and 43:45, respectively. Dividing 4,144,316K (4,243,779,584 bytes) by the number of seconds in 43 minutes and 45 seconds (2625), gets us 1,616,658.88 bytes per second, multiplied by 60 gives 96,999,533.34 bytes per minute, and for 43 minutes is 4,170,979,933.98 bytes. It's generating more data than a full 3 1/2" floppy every second. So given the three files represent 44:43. 43:45 and 19:54 of video, this means on a full charge it is capable of a continuous recording of a little over 108 minutes. The interconnect isn't too bad, one video ended at 2:12:16 and the next video starts at 2:12:17, so it lost about 1 second between closing the one file and opening the next. One ended at 3:29:30 and the next started at 3:29:31, again only losing one second in automatic transition. So I think for an inexpensive camera it's not too bad. Eurotrash's opinion notwithstanding. |
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Another Limit for my $35 camera by 02/07/2016, 1:56am PST  You make that piece of shit camera sound like the Starship Enterprise by 02/07/2016, 3:43am PST Re: You make that piece of shit camera sound like the Starship Enterprise by 02/21/2016, 6:29am PST You should make a vid of how to cook ass burgers NT by 02/21/2016, 11:00am PST |
