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April 29, 2021

Bosma 8K Camera Gets Real

Chinese manufacturer Bosma showcased an 8K camera at CES 2020 thinking they would soon introduce it for around $5K. It has taken some time, but the camera looks to be more real now as respected Japanese equipment maker Astrodesign will now resell the camera. Astrodesign has several 8K products and often manufacturers them for other brand names. This resale deal definitely puts a stamp of legitimacy on the new Bosma camera dubbed the G1 8K.

The G1 8K is a box camera that uses a micro four-thirds imager chip. This is the same sized chip that is in the Sharp 8K camera debuted some time ago but was never introduced. It was being developed in cooperation with Astrodesign (Astrodesign also developed Sharp’s 3-chip broadcast 8K camera) so maybe Astrodesign helped with the Bosma camera as well.

The Bosma camera captures 8K at 30 or 25p at a bitrate of 200Mbps, and 4K at 60, 50, 30, 25 or 24p at 100Mbps, with continuous recording times of up to 30 minutes. Both 8-bit and 10-bit recording is offered, using the H.264 or H.265 codec for MOV or MP4 files. An HDMI 2.1 port is included for playback, with streaming applications via an RJ-45 jack with IPV4, RTP, RTSP or SRT protocols support. There is even a Wi-Fi transceiver.

Astrodesign has their own box camera, the AB-4815 that can capture 8K at up to 120 fps using a super 35mm sensor. This is a more professional camera with interface options like 12G SDI, so aimed at a different audience and price point. The Bosma model will be aimed at enthusiasts, video bloggers, consumers, photographers and others where 24/30p is acceptable and a lower price point is needed.

Specifications for Bosma G1 8K

Image sensor
Image sensor 4/3 inch pixel count 7680 x 4320 8K CMOS image sensor
Number of effective pixels Approximately 33 million pixels
method Single plate type
Sensor size 18.84 mm x 10.60 mm
Optical system specifications
Lens mount MFT
Recording specifications
resolution 8K 7680 x 4320 30p 4K 3840 x 2160 60p
frame rate 8K 30/25 / 24fps 4K 60/50/30/25 / 24fps
Continuous recording time 30/15/10/5 minutes
Bit rate control method VBR / CBR
bit rate 8K30p up to 200M 4K60p up to 100M
Compression method H.265 / H.264
Encoding method H.265 Main10 profile H.264 High profile
tone 10 / 8bit
Voice bit 24 / 16bit
Audio sample rate 48 / 44.1kHz
Voice codec AAC / PCM
file format MOV / MP4
Supported protocols IPv4 / RTP / RTSP / SRT
Recording mode Normal shooting / time-lapse shooting
Shooting specifications
Exposure compensation Auto / Manual -3.0 to 3.0 (only for auto)
Aperture Set on the lens side
ISO Auto / Manual (160-25600)
shutter Speed: Auto / Manual (1/30 to 1/156 250s)
Angle: Auto / Manual (1 ° to 360 °)
White balance Auto / Manual (2500K-10000K)
Image adjustment Brightness / Contrast / Saturation / Sharpness
noise reduction Off / Manual (0-255)
HDR SDR10 / SDR8 / HDR10
Color gamut BT.709 / BT.2020
Input / output terminal
HDMI HDMI 2.1 (maximum 8K 30p) 1 output
USB USB3.0 (for external storage connection) 1 I / O
voice 3.5mm plug 1 input, 1 output
5 pin LECO (XLR microphone 2CH) 1 input
Built-in stereo microphone installed
Ethernet RJ45 connector 1 Input / output Streaming compatible
Wi-Fi: IEEE802.11b / g / n / a / ac compliant 2.4GHz & 5GHz band compatible
Video recording media CFast2.0 card 1 slot exFAT system compatible