#apertus IRC Channel Logs

good day

lets give it a try

openmoko replied pretty fat

impressive work.

software: the main axiom firmware repo source files have copyright author, license, and date.

hardware: could you export the schematic (as pdf) and board (as gerber/excellon) so people without Eagle CAD can also see it (see hardware point 6 in our README)? these exported fabrication files don't have to be in the source repository. I found some schematic export in the wiki (https://wiki.apertus.org/index.php/Resources), but not for all schematic, and not the gerbers.

se6astian: I think matterbridge is supposed to be decent

yeah...

at least to indentify the files

yeah

Bertl_oO: under what license do you want to put the binary files currently present in axiom-firmware (the machxo2 and zynq bitstreams for example)

I'm not even sure what our options are there ...

probably

should i add my research results to the wiki?

ah, thanks for the discord input

FFD fuji xmount is 17.7 mm

that indeed makes it impossible

would be "easy" to build a shorter fuji x mount if we find a lens bayonet ring

lens communication is a whole other topic

fuji said they open the protocol for lens manufacturers with NDA in 2020. that probably does not help us

Bertl_oO: so what do you think about CC-BY-SA-4.0 for the bitstreams?

this is also probably reverse engineered https://www.fringeradapter.com/nikon-f-to-fujifilm-x

I mean actually reverse engineering the protocol is probably not that hard given a setup where one can capture traces during camera operation

there seem to be some people that are able to do it... we could pay them. any idea what that might cost?

we can probably do it ourselves

we also planed to do it for canon but so far noone did it :)

but yes, I think the challenge is actually too trivial for most people who like technical challenges :)

:P

they are focused "by-wire", even when using the manual focus

most small mirrorless lenses seem to work this way. also e-mau

hmm well I assume you have a x-mount compatible camera? can you take some high res pictures of the electrical connections on the camera and the lens side?

I can offer to take care of the mechanical side if we find someone to deal with hardware and software

oh such extension tube set looks perfect to intercept the signals to the lens while its connected to the camera

)

yes, under 10 euro from china. would that be enough?

it would be perfect if fuji would sell replacement parts for the camera bayonet. we could als as a company... but they probably don't

yes such extension tube should work

https://www.ebay.de/itm/331609584289?hash=item4d3578b2a1:g:EDQAAMXQ0pNRuXUo 3x passive mount for less than 10 euro, from china

great

(used for the panels)

https://github.com/apertus-open-source-cinema/pcb-paneliser/tree/master/input/base_variant

I think we should maybe start collecting all schematics, boards, gerbers in a central location, currently there are a multitude of locations for them

se6astian: should i extend https://wiki.apertus.org/index.php/Lens_Mounts with information and pictures of mount?

that would be great davidak[m]!

thanks

that should be possible with a fuji camera, fuji lens and such an active macro extension tube

next step once the protocol is known would probably be some kind of hardware proof of concept with a microcontroller that drives the pins?

se6astian: well accessing the pins is not 'trivial' as you probably need to position pogo pins agains them somehow

but yeah

in the emount adapter there was a small PCB with springs and pogopins indeed

but soldering cables to the pads should be possible somehow I assume

true

using the original pogo pins from the macro extension tube

if its possible to drive the internal focus that precisely yes

check out the second video link

the hardware could be not that expensive

lidar would be interesting not just for distance measuring but also 3d depth mapping of the footage you are shooting

should i create an issue to collect research?

there is https://www.sparkfun.com/products/16977

that does not look much different from the DJI module from the outside

very interesting possibilities we have when a system is open

would be cool if one existed

there is http://www.xaxxon.com/xaxxon/openlidar

yes, its not for us

we need an actual 3d map

interesting

great

i can send them to you including with a camera and lens when you have time for the reverse engineering

noted!

nice

but what I actually meant is that ToF sensors are used nowadays instead of stand alone solutions

Bertl_oO: all scripts at https://github.com/apertus-open-source-cinema/axiom-firmware/tree/main/software/scripts by you are gpl3.0-or-later, right?

I don't care either way

ok

good question, but probably no

perfect