AXIOM Beta

1 AXIOM Beta PCB Stack Concept

Seen from the back side:

1.1 Image Sensor Frontend

for Truesense KAC12040

Dimensions (inches if not stated otherwise):

1.2 IO Modules (Shields)

1.2.1 Left

seen from front of camera

Dimensions (inches if not stated otherwise):

1.2.2 Right

seen from front of camera

Dimensions (inches if not stated otherwise):

1.3 Dual Micro SD Module

This module adds two micro SD card slots to the AXIOM Beta. The active slot can be switched via software, only one slot can be active at a time. The slots can not be used for storing bootable camera firmware as they are mounted after the main Linux operating system has booted.

Micro SDHC and Micro SDXC cards are supported.

The maximum write speed is mostly limited by the media but could go up to: ???

1.3.1 PCB Top

1.3.2 PCB Bottom

2 Lens Mounts

Picture of a Nikon F bayonet mount.

Mount	Nikon F		Canon EF		Micro Four Thirds
Type	Bayonet
Compatible Lenses	Nikkor FX	Nikkor DX	EF	EF-S (optionally)
Image Circle Size	Full Frame ø 43.3 mm	DX ø 28.4 mm	Full Frame ø 43.3 mm	Canon APS-C ø 27.3 mm	"Half Frame" ø 21.6 mm
Throat	44 mm		54 mm		~38 mm
Flange focal distance	46.5 mm		44 mm		19.25 mm
Axiom Beta Sensor Compatibility	16mm Four Thirds Super35				16mm Four Thirds

2.1 Nikon F

Measured Bayonet Thickness: 1.3mm

3 Image Sensors

Graphic that compares the different Sensor Sizes and Lens Image Circles of the Axiom Beta

Axiom Beta Model	16mm	Four Thirds	Super35
Brand	CMOSIS	ON Semionductor (prev. Truesense/Kodak)	CMOSIS
Model	CMV2000	KAC12040	CMV12000
Type	CMOS
Shutter Type	Pipelined Global Shutter	Global & Rolling Shutter	Pipelined Global Shutter
Color filter Array	Bayer (Color model) None (B/W model)
IR filter	no
Anti-Aliasing Filter (OLPF)	no
Size	10.6 mm × 5.94 mm ø 12.1 mm	18.8 mm × 14.1 mm ø 23.5 mm	22.5 mm × 16.9 mm ø 28.2 mm
Crop Factor	Full Frame ∕ 3.56 16mm Film ∕ 1.05	Full Frame ∕ 1.84 Four Thirds ∕ 0.96	Full Frame ∕ 1.54 Super35 ∕ 1.10
Aspect Ratio	16:9	4:3	4:3
Pixel Resolution (h × v)	1920 × 1080	4000 × 3000	4096 × 3072
Pixel Size	5.5 µm	4.7 µm	5.5 µm
Dynamic Range	10 stops 15 stops (HDR mode)	9.3 stops (Gobal Shutter) 12 stops (Rolling Shutter)	10 stops 15 stops (HDR mode)
Sensitivity		200 ISO	~ 400 - 1250 ISO
Max Frame Rate @ Bit Depth	340 fps @ 10 bit 70 fps @ 12 bit	110 fps @ 8 bit 70 fps @ 10 bit 30 fps @ 12 bit 10 fps @ 14 bit	300 fps @ 10 bit 180 fps @ 12 bit
More info	Official Specs	Datasheet	Datasheet Official Specs Sensor Noise Analysis