- RX10 II: 1″ sensor, 4K video, 40x super slow motion, super high shutter speed (1/32,000 second)
- RX100 IV: The above, plus 16 fps continuous shooting @ 20.1 MP, EVF, software upgradeable
- A7 R II: Full frame, 42.4 megapixels, ISO 102,400. 5-axis image stabilization, 4K video, high bit rates
Source: Sony Global – Digital Imaging
Using Sony Vegas Pro (and presumably newer version of Sony Movie Studio)
- I used the MainConcept AVC/AAC (*.mp4, *.avc) codec
- I selected Custom Frame size and set width to 3840 and height to 1080.
- I set maximum bps to 40,000,000
- I set average bps to 32,000,000
- On the Project tab, I set Stereoscopic 3D mode to “Side by side (full)”
- Upload the file to Youtube
- Add the following as individual “tags” in the Youtube “tags” section:
After Youtube recodes the video, the viewer will include 1440 HD and 2160 4K viewing options. Select your 3D viewing options and select 2160 4K – note, you need a fast Internet connection. This produces a much higher quality 3D image than the normal Youtube 3D configuration.
Using Magix Movie Edit Pro (version 13 – should work on 14 too)
- Compress the output to an mp4 video as 3840×2160 (not 1080). This creates a vertically stretched “half frame” on the left and right – however, since its 1920 wide, we end up retaining all of the original 1920×1080 on each stream.
- Set to side by side, half frame (didn’t work for me when I set to full frame side by side)
- Select a high bit rate such as 40 Mbps or faster
- Upload to Youtube with the tag yt3d:aspect=15.99:9
- In Advanced settings, select “This video is already 3D, and then select “Side by side: Left video on left side”.
After encoding, this shows up as a 4k 2160 3D video and plays as you would expect, but at a much higher image quality.
A comparison of inexpensive, consumer level 3D cameras in terms of the specifications that matter for 3D photography and video. There are other cameras besides these but these are affordable and available from many vendors. Another day I will look in to specifications of higher end cameras, such as the Sony TD10/TD20 3D video cameras.
Update: Since posting this item it appears that most of these cameras are in the process of being discontinued and you can find some great half price deals right now. It is likely that new 3D cameras will be introduced in a few weeks at the 2013 Consumer Electronics Show.
||Toshiba Camileo Z100
||35-105mm 35mm equivalent
||25-100mm 35mm equivalent
||Fixed lens, 4x digital zoom in 3D, 35mm equivalent unknown
||2x 10.0 MP Sensor3D Resolution
7.2 MP in 16:9 ratio
8.9 MP in 3:2 ratio
10.0 MP in 4:3 ratio
Stills recorded in full size side by side MPO format
|2x 12 MP Sensor3D Resolution
6 MP @ 16:9
8 MP @ 4:3
Stills recorded as full size
Side-by-Side MPO files
|2x 5 MP sensor3D Resolution
4 MP @ 16:9
(2D 5M 2592 x 1944, and an “interpolated” 16 MP 4608×3456)
Stills recorded in full side-by-side JPEG
MP4 encoding3D HD Resolution
two separate video streams recorded as 1280×720/24p for left
1280×720/24p for rightEncoding
AVCHD or MJPEG
in either AVCHD or MP4. Sensor is progressive but video is encoded as 1080i – end result is basically the same as 30p.
AVCHD or MP43D Resolution
960 x 1080 for left
960 x 1080 for right
MP4 encoding,3D file format is one half side-by-side formatmeaning 960×1080 for each halfFeatures external mic input plug
||Glasses free 3D
||Glasses free 3D
||No, CCD imager
||Yes, CMOS imager
||Sony Bloggie 3D
||16:9 stills and video: 47mm (35mm camera equivalent)
4:3 41mm (35mm equivalent)
||2x 5.15 MP sensor
(3.1 MP @ 16:9)
(5 MP S 4:3)3D
2 MP (1920x1080x)Encoded as full size MPO side by side images
3D: 1080/30p onlyEncoding
MP4Encoded in half size side-by-side 3D format for 960 x 1080 resolution per side
||Glasses free 3D
||Yes, CMOS imager
||internal, not replaceable
An interesting observation – some of these cameras have 1920×1080 image sensors but actually cut the image in half when encoded into video. The reality is they are not 1920×1080 but 960 x 1080 x 2.
In addition, the frame rate offers additional temporal resolution.
Let’s compare the image quality in terms of actual resolution, as well as resolution in time by calculating a “mega pixels per minute” rate:
- Fujifilm W3: 1280 x 720 x 2 x 24 fps = 44.2 MP/minute
- Lumix 3D1: 960 x 1080 x 2 x 30 fps = 62 MP / minute
- Toshiba Z100: 960 x 1080 x 2 x 30 fps = 62 MP / minute
- Sony Bloggie 3D: 960 x 1080 x 2 x 30 fps = 62 MP / minute
- Generic 1280 x 720 x 30 fps = 55 MP / minute
- Generic 1280 x 720 x 60 fps = 110 MP / minute
Interestingly, depending on many factors, your highest image quality might come from 720 x 60 fps because it delivers more potential information to your eyes over time.
Shooting 3D with my two Kodak Playsport Zx3 cameras, I think the 720/60p dual camera view looks on par with the 1080p/30p view. But that is also because after editing and 3D processing, the output of a 1080p video often ends up as a 960x1080p side by side video (as needed, for example, to upload to Youtube).
Figuring out which is best can get complicated!
The Verge writes an article saying that 4k is wonderful, unlike 3D, saying that 4k is what consumers want. This reporter does not understand the relationship between 4k and 3D at all and seems to think that when 4k comes along, no one will watch 3D.
Most people are unable to distinguish between 720p and 1080p on their large screen home TVs unless they have huge screens. 4k is designed, in part, to present 3D images. Most current 1080p based 3D systems either halve the resolution or halve the frames – with one half to the left eye and another half to the right eye.
A “4k” image is four times the resolution of 1080p (think 4 screens instead of one 1080p screen) and provides the quantity of information to present high quality 3D images.
3D works best when there is as much detail as possible and looks worse when downgraded. A 3D video shot on two 1080p cameras still ends up with the equivalent of 540p for the left eye and 540p for the right eye, or 960 vertical lines, or half the frames devoted to the left and half to the right eye. Either way, today’s system lose a lot of resolution – 4k fixes that too.