This is really impressive...

Bertl wrote:

I would go to pure digital in that box, maybe input and output if you like to use headphones or similar
then stamp and CRC/ECC the data and send it over a simple serial link to the Beta (e.g. via one of the existing shields)
there are two power rails for each shield, one is the IO voltage and the other can be used for powering electronics on the shields (typically 3.3V)

Also see T250 and T557

The test footage looks amazing.

SHA2017 is around the corner: https://lab.apertus.org/T754

Given that the Camera has a linux running on it, the easy mode on this would probably be to use something like cryptsetup. No need to invent the wheel new.

two details:
regarding 48 Volts - they should be switchable for every of the ( preferably 6 ) channels separately.
The ODAC link : http://nwavguy.blogspot.co.at/2012/04/odac-released.html ( btw: look ate THE REAL NUMBERS there )

The generation of true random numbers may actually stop this idea from beeing practical. A (open) hardware TRNG like the infnoise is capable of producing 259000 bits per second. To fill a Terabyte (8*10^12 bits) this would take roughly a year Maybe one should seriously consider a different approach. Edit: with something faster like the Bitbabbler one comes down to two weeks per Terabyte. If one had multiple TRNGs time would go further down. This however means: People need to get one or multiple TRNGs. People need to plan ahead (which film people usually do). The thing has to be working and save.

I worked as Set Recordist on 10+ productions and tinker with modular synthesizer electronics. Worked with a lot of gear reaching from Aeta 4Minx to various Sounddevices gear. Constructing suitable Preamps, that match those of a field recorder should be possible. Building good 24bit accuracy ADCs can be more challanging though. To achieve high audio quality, some preconditions regarding the rest of the camera have to be fullfilled:

As a camera operator:
ND filters are nice especially for one reason: image sensors don't behave the same across the ISO range. In a very bright situation you could close the aperture or use a higher shutter speed, but many times this is not desired. If you had a perfect sensor, you could just turn down the brightness of the sensor – in reality however you could run in some kind of problems with this (for example colors look different, reduced dynamic range, different noise, ...) So sometimes the best solution is to use a ND filter.

Exactly. All the film makers would need it. There are few things to consider i guess.

Well - just demonstrating the new premises is also a good idea - not only by showing Pictures but by also giving sort of audible impression.

@sebastian you may consider using 2 shotgun or super cardioid mics rather than lavs. can get boomed with tripods.

P2P is the future of the Internet.

Why stop there, why not 16K 600FPS ... :)

Sounds nice! Do you happen to have a FOSS/OH solution for PCI-E 3.0 and M.2?

Yes, I think it would be a good idea for AXIOM Gamma to have a PCI Express bus for M.2 SSDs and XQD compatiblity.

I think we should use PCI Express 3.0 x4 with 4 M.2 cards in RAID-0 so we can get RAW Uncompressed in a very high framerate and resolution. Because if we go for SATA SSDs the SATA III would be a bottleneck. We should develop it with PCI Express so M.2 and XQD compatible. We can also add more memory modules for Cache.

yeah, the plastic extruder worked fine, for now we test it with plastic granule. we need to built a shredder to recycle old plastic. we hope to print the first recycle beta enclosure before christmas.

chooksprod, very nice! Any experience with the plastic extruder yet?

We working on a DIY foundry for now. We think about recycle aluminium and make cube ready for a CNC. It can be a perfect "fair" way for metal component. But we need lot of test (temperature, solidity etc..)

@Bertl Yes, like i said, it's currently nearly impossible.

Note that fairphone does not limit itself to "fair" components.

I agree it is the goal but we have to be realistic that is a huge challenge....

Yes, it is nearly impossible but can be a goal. Like Fairphone does it.

Do you mean electronic components or solder ?

Hi there, I have the same interest as you to make a Gimbal for Axiom Beta.
I heard that the weight of the camera could be around 250grams (without lens and recorder, maybe the battery too).
The dIY web site you mentioned seems to be deserted. Did you make some new searches about the gimbal for the Axiom?
Thx

quote from the nikonhacker forum, regarding leedong, one of the great nikon hacker guys (brought raw video to the nikon d800, but never finished it...), reverseengeneering the nikon lens protocol

Currently the idea is to reverse engineer the lens controls on the e mount on the Beta. There are a lot of adapters out there that not only provide a physical conversion to Nikon, Canon, etc. but also do lens control translation.

Hi everybody, I write my question in the remote page but i think, it is better to write here :

how would it be possible to connect the 2 6gbit connectors of the beta to a pci express 3.0 controller, which should be connected to a M.2 slot?

@Herbert as far as I recall we discussed the possibility of CF to SSD conversion which wasn't that simple because CF uses various modes, I think it was something like - transfer/memory/IO - and all three modes had to work. People have discussed it when trying to get a RAW Stream of Magic Lantern/Canon 5D3 onto an SSD instead of an expensice CF card.

agree, but just to have the soldering option for handheld use if it is easy and cost free to make..?

Here I have to add that this could have very negative side effects if the remote is attached to the camera and the entire camera is subject to vibration during shooting.

would it be possible to add soldering for some kind of mechanical feedback (vibrating device, small hammers) which are munted to the enclosure?

Just start a new page like: https://wiki.apertus.org/index.php/CCTV_CCD_Camera_Teardown

Ok, all files on the "Recent Changed" page, for 22nd september. I didn't find how to make a page of the photos.

Please take pictures of the disassembly and create a new wiki page about it, like this: https://wiki.apertus.org/index.php/Sony_ENG_camera_innards

Two CCD cameras opensource projects (for astronomics still pictures) that could maybe help : http://stargazerslounge.com/topic/157438-opensource-ccd-camera-project-collaboration/page-1 , http://www.uai-ccd.com/
I just opened an old CCTV CCD camera to see how it's made inside, I definitely can't understand a thing (so far at least, I need someone else to explain me!)

A somehow noise camera, like noise music!

Hi,
I'm one of those people thinking that CCD sensors are more interesting for cinema pictures. I have the feeling that the digital cinema is going reverse than what the history of art did : from very naturalistic and defined paintings to pointillism and colour shades abstraction.... in cinema history we first knew pointillism - film - , then we saw with the dv some kind of impressionism, and now we go to cmos 8k, and so on with a technology that have few meaning for most of the films that are beeing produced nowadays....

yeah, they will get faster and consume less power ;)!!

Sandisk - Specifications Line 2 says "(Preliminary specifications subject to change)" ;-))

In T280#4261, @muk wrote:

i connect to that dream! but i guess 4TB internal storage might be a bit to optimistic.
but a big and fast internal storage should be a good point for at least buffering raw footage (high-speed) data before writing it to the SD. but it should also be able to permanently store footage. storage space might than be a matter of compromises between price and space...

yeah, playing pong was fun: https://www.youtube.com/watch?v=cNAdtkSjSps

linked to this, i researched a little bit on frameless recording (where you need a ccd sensor for)
and found out that prof. hank dietz released this short pdf on this subject: http://aggregate.org/DIT/ei20140205.pdf

It would be interesting to learn the current state of development, the only large diameter sensors I know are from Kodak(now onsemi) and Dalsa:

As sebastian explained, UHS-II is electrically different from "normal" SD, so the only way to make this work is through special hardware.

Hi db

Hello all!

black magic's ursa mini cooler:

here is a link for diy gimbals : http://www.diygimbals.com/

@kimbray, definitely look like interesting options!

What about something like this?
http://www.thessdreview.com/daily-news/latest-buzz/samsung-begins-mass-production-of-industrys-first-m-2-nvme-pcie-ssd-for-pcs-and-workstations/
or
http://www.legitreviews.com/intel-ssd-750-nvme-pcie-ssd-review_161829
Both address the write performance needed I believe and are getting cost effective. Wit the NVMe capabilities the latency and queues would be awesome.
Intel SSD750 about $1K for 1.2TB storage.
There are others entering the market too like...
http://www.gskill.com/en/product/fm-pcx8g2r4-960g

What is the weight of the axiom beta without the lens?

a payload of 6 kg max seems reasonable. 2 kg would be a challenging minimum.

• What is the weight of the payload you want to hang under the drone ? DJI is selling a drone that can lift a 5D Mark III (6 kg max). (1 750,00 €). Full carbon fiber.

We are designing a variant with E-mount. So we could save weight on the camera side, shorten the distance for the center of gravity and choose from good lightweight (and copter proven) lenses. Storing the data as a different thing....

Seems like the large sensor would add a lot of weight, not from the sensor itself, but from the lens. But even if it cuts your flying time by 70%, still pretty cool.

For flying I think a combination of a rugged small aluminum framework plus thin 3d printed plastic parts would give the best compromise of robustness at light weight. Basically the same way as aircrafts are constructed.

Thanks Benoit, lets give it a shot, no? Thats the beauty of this project, it is geared toward openness. Now it might be challenging, I agree...
Herbert mentioned that there was already a bunch of folks working on this (in theory), so there is hope!
lets try to gather informations and links on this thread.
ABS seems to be a good choice due to its lightness and robustness. Or do we need an aluminium case to protect expensive components? It would be funny to do a crash test simulation, and also potentially saving some costs : )

Personally I like the idea and the approach. But from my understanding of what I read on this site, the camera is more geared towards "ground" filmmakers where weight is not such a big deal (at least up to a certain limit.)

Hello Francois,
all files of the pcb-stack are on GitHub: https://github.com/apertus-open-source-cinema/beta-hardware
Feel free to design a camera body for your purpose show us your design and share it!

@Laoena, what is your suggestion we do with that cable exactly?

Just saw this on Kickstarter: TOB Cable: One cable for everything

i connect to that dream! but i guess 4TB internal storage might be a bit to optimistic.
but a big and fast internal storage should be a good point for at least buffering raw footage (high-speed) data before writing it to the SD. but it should also be able to permanently store footage. storage space might than be a matter of compromises between price and space...