AXIOM Beta
1 AXIOM Beta Topics
1.1 Active Battery Mount
Battery mount for NP-F970/F750/F550 batteries to power the AXIOM Beta. Includes power usage and capacity monitoring to estimate remaining charge and time remaining.
More Thoughts on Power.
1.1.1 InfoLithium Protocol
Proprietary protocol from Sony that exchanges metadata between batteries and devices. Expected data inside the protocol includes: charge cycles, battery ID, remaining total capacity, remaining current capacity, etc. Only official Sony batteries incorporate this protocol, cheap replacement parts don't and some Pro Sony cameras refuse operation with batteries without InfoLithium communication. Decrypting this protocol could give us more insight into the battery but is not essential as we can measure the discharge curve and estimate remaining capacity rather accurately that way.
1.1.1.1 Hacking References
http://randybuildsthings.wordpress.com/2013/02/25/sony-infolithium-m-teardown/
http://www.dpreview.com/forums/post/4296759
1.2 Dictator Remote Controller
1.3 Lens Mounts
| 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 | |||
More Details: Lens Mounts
1.3.1 Passive EF Mount
1.3.2 Passive Nikon F-Mount
Measured Bayonet Thickness: 1.3mm
1.3.3 Passive Micro Four Thirds Mount
1.3.4 Active Canon EF Mount
1.4 4K RAW PC recording option
1.5 Enclosure Design
Switchable ND Filters not planned currently
1.6 Electronics
1.6.1 AXIOM Beta PCB Stack Concept
Seen from the back side:
1.6.2 Image Sensor Frontend
It is planned to incorporate a glass filter slot between lens mount and lens base for placing an IR-cut-off filter or OLPF with IR-cut-off coating in the light path.
for Truesense KAC12040
Dimensions (inches if not stated otherwise):
1.6.2.1 Image Sensors
| 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 | |||
1.6.3 IO Modules (Shields)
1.6.3.1 Left
seen from front of camera
Dimensions (inches if not stated otherwise):
1.6.3.2 Right
seen from front of camera
Dimensions (inches if not stated otherwise):
1.6.4 Dual Micro SD Module
This module adds two micro SD card slots to the AXIOM Beta. The active slot can be switched via the card driver and both cards share a 50MByte/s interface to the Zynq. The external slots can not be used for initial booting of the camera.
1.6.4.1 PCB Top
1.6.4.2 PCB Bottom
