by Tdarcos » Mon May 29, 2023 6:28 am
Jizaboz wrote: Sat May 27, 2023 6:04 pm
Well it least it works! Picture quality looks ok to me. I wonder if perhaps the higher rez options are hidden somewhere?
I checked the menus. The onlyoptions are
Movie size:
→ 1080p (30 fps)
_ 720p (60 fps)
_ 720p (30 fps)
_ 640x480 (60 fps)
Image quality:
→ Super fine
_ Fine
_ Normal
I'm using the highest of both. Now, is 60fps for higher picture quality or slow motion? Have to try it and see.
Flack wrote: Sat May 27, 2023 8:05 pm
Looks good, Paul! IMHO, 4k is pretty overrated at this point except in some pretty specific situations. 4k resolution videos are 4x the resolution of HD (1080p) videos, which means 4x the file size and 4x the resolution.
As I said, I bought it expecting a 1080P camera, and I am satisfied. Its file format is .MOV, and two files I made had the following statistics:
Both: Width 1920 x Height 1080
This Video - 654 MB (686,640,117 bytes) - Length 6:05 (I calculate 10,960 frames at 30fps)
Test Video - 24.7 MB (26,001,993 bytes) - Length 0:13 (390 frames)
So, the file size is 1.8 to 2 megabytes per second. About 62,570/69,905 bytes per frame. Now, the container adds some overhead which is more prevalent in a short clip, but given 1920x1080 pixels is potentially 2.074 million pixels per frame (and at 3 bytes per pixel for 24 bit color) so given key frame data compression (an initial full frame (key frame) is generated, then for several frames only the differences between this frame and the previous one are stored, then a new key frame starts the cycle over again) those are probably very compact files.
In the case of the longer video, this is about 114 million bytes per minute, probably not that difficult to manage.
[quote=Jizaboz post_id=137694 time=1685235854 user_id=910]
Well it least it works! Picture quality looks ok to me. I wonder if perhaps the higher rez options are hidden somewhere?
[/quote]
I checked the menus. The onlyoptions are
Movie size:
→ 1080p (30 fps)
_ 720p (60 fps)
_ 720p (30 fps)
_ 640x480 (60 fps)
Image quality:
→ Super fine
_ Fine
_ Normal
I'm using the highest of both. Now, is 60fps for higher picture quality or slow motion? Have to try it and see.
[quote=Flack post_id=137695 time=1685243142 user_id=840]
Looks good, Paul! IMHO, 4k is pretty overrated at this point except in some pretty specific situations. 4k resolution videos are 4x the resolution of HD (1080p) videos, which means 4x the file size and 4x the resolution.
[/quote]
As I said, I bought it expecting a 1080P camera, and I am satisfied. Its file format is .MOV, and two files I made had the following statistics:
Both: Width 1920 x Height 1080
This Video - 654 MB (686,640,117 bytes) - Length 6:05 (I calculate 10,960 frames at 30fps)
Test Video - 24.7 MB (26,001,993 bytes) - Length 0:13 (390 frames)
So, the file size is 1.8 to 2 megabytes per second. About 62,570/69,905 bytes per frame. Now, the container adds some overhead which is more prevalent in a short clip, but given 1920x1080 pixels is potentially 2.074 million pixels per frame (and at 3 bytes per pixel for 24 bit color) so given key frame data compression (an initial full frame (key frame) is generated, then for several frames only the differences between this frame and the previous one are stored, then a new key frame starts the cycle over again) those are probably very compact files.
In the case of the longer video, this is about 114 million bytes per minute, probably not that difficult to manage.