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video:recordinghints

GoPro Hero4 Black

Best possible combinations of fps and resolution.
Video resolution: 3840 x 2160 pixels / 30fps (UltraHD) fixed @ 14mm (eq 35mm)
Battery life: 1h:10m (protune enabled 4K)

4K 16:9
30fps-NTSC wide 14mm / crop 60mbit
4K Super 16:9 - 4:3 maximum resolution
23fps-NTSC/PAL wide 14mm / hqresize 60mbit
2.7K 16:9
50fps-PAL wide 14mm / hqresize 60mbit
50fps-PAL medium 21mm / hqresize 60Mbit * best
2.7K 4:3
30fps-NTSC wide 14mm / hqresize 60mbit
1440p 4:3
60fps-NTSC wide 14mm / resize 48mbit
1080p 16:9
60fps-NTSC wide 14mm / hqresize 45mbit
60fps-NTSC medium 21mm / hqresize 45mbit
120fps narrow 28mm / crop 60mbit
H264 Parameters - High Profile 5.1
Color Space: YUV Chroma subsampling: 4:2:0 Bit Depth: 8bit Color Primaries: BT.709
Reference Frames: 1 Color Range: Full CABAC: Yes Bitrate 48-60Mbit/s

Encoding chip: Ambarella A9 http://www.ambarella.com
Sensor: 4072×3046 SONY 1/2.3“ 12Mpix BI-CMOS Exmor R IMX117

* HQResize: image is resized from sensor (high quality)
* Crop: image is cropped from sensor (no quality problems)
In other modes there are “skipped lines” - huge quality loss, that is why I don't list them.

Outdoor shooting

6500K / GoPro Colors* / -0.5EV
*In high contrast situation - Flat Colors
Set sharpness to low always because picture is oversharpened in default settings.

GoPro HERO HDR recording

It's possible to record full HDR in 4K on GoPro HERO, but there are a lot of color noise in picture. This can be possible when you are shoot in flat profile, with native color preset (it's very close to bt2020). Then you can encode this video in HEVC/10bit with added HDR10 metadata.

Mobile LENOVO Vibe Z2 Pro

Max Video quality: 3840 x 2160 pixels / 30fps up to 100Mbit/s with Optical Stabilization
CyanogenMod 14.1 (Android 7.1) + Cinema FV-5
f2.2 / 4mm (25mm) 5800K in settings mean ~6500K real on display or 100,88,90

H264 Parameters - Base Line 5.1
Color Space: YUV Chroma subsampling: 4:2:0 Bit Depth: 8bit
Reference Frames: 1 CABAC: No Bitrate 65-100Mbit/s

Supported functions: Auto Exposure Lock, Auto White Balance Lock, Focus Lock, ISO Lock
Mobile phone can write 4K 100Mbit/s with additional software. In default settings there are a lot of sharpness.
Set sharpness to zero.

100Mbit/s → 750MB/min
65Mbit/s → 488MB/min
40Mbit/s → 300MB/min

Encoding chip: Qualcomm Snapdragon 801 / Adreno 330
Sensor: 5328 x 3000 1/2.6” 16Mpix ISOCELL S5K2P8
Optics: Optical Stabilization

Sample 4K Video on Youtube.com

Canon EOS 600D

Video resolution: 1920 x 1080 pixels / 35fps
CMOS Deshaker: 57% / Crop 19%
No moaré/aliasing at 1080p + Crop 3x (bad named Digital Zoom in menu)
It's floating 2Mpix window on 18Mpix sensor with digital stabilization

H264 Parameters - Base Line 5.0
Color Space: YUV Chroma subsampling: 4:2:0 Bit Depth: 8bit Color primaries: BT709
Reference Frames: 1 CABAC: No Bitrate 45Mbit/s Color range: Full

Lens

Sigma 18-50mm
18mm f4* / f16 DoF-2.8cm
32mm f3.5* / f11 DoF-1cm
50mm f4.5 / f8* / f11 DoF-0.5cm

* best 32mm/f8
http://slrgear.com/reviews/showproduct.php/product/1249

Sigma 70-300mm
70mm f4 / f8* DoF-6.6cm
100mm f8* / f16 DoF-3.6cm
200mm f8* / f11 DoF-1cm / 0.34
300mm f8 / f11* DoF-0.4cm / 0.13

* best 100mm/f11
http://slrgear.com/reviews/showproduct.php/product/230

Samyang 35mm
35mm f5.6* / f11

http://slrgear.com/reviews/showproduct.php/product/1576

Canon HFS100

1920x1080x25p/30p NTSC
(progressive mode must be selected in postproduction because stream is marked as interlaced for broadcast compatibility)

Setting Description
FrameRate PF25 / 30 for NTSC
xvColor On
AGCLimit 6dB or 0dB
Quality MXP 24Mbit/s 1080p
Custom Effect Sharpness Low
Crop mode 1.7x*

Manual color calibration required (cool via auto-whitebalance)

*For best picture quality you must set 1.7x crop mode otherwise aliasing occured.
Crop is 2Mpix window on 8Mpix sensor - this enable optical and digital stabilization at once.

H264 Parameters - High Profile 4.0
Color Space: YUV Chroma subsampling: 4:2:0 Bit Depth: 8bit Color Space: BT.709
Reference Frames: 2 Scan type: Interlaced* CABAC: Yes Bitrate 24Mbit/s

* Fake in PF mode

video/recordinghints.txt · Last modified: 2019/01/08 11:08 by Jan Forman