Picture from fosdem

[Kieran Bingham]

Hi Will,

Quoting Will Salmon (2024-02-11 21:49:47)
> Hi Kieran et al.
> 
> Some of the pics I took at fosdem with my silly big yellow camera running
> libcamera came out better than others.

Thanks, it was great to see your project.

> This was the best one I tuck while i was with you guys
> https://photos.app.goo.gl/RQQbJtitbNCGB372A but there are some better ones
> with others.
> 
> The main issue is because of the latency with the viewfinder it's hard to
> get the manual focus right, which should be fixed with better software for
> the viewfinder so that's just on me to improve.

I think I've seen some attempts to reverse engineer the protocols used
on the DSLR lenses for movement control. Would be fantastic to see a
motorised DSLR lens on a large sensor running libcamera one day, but I
think that's a fairly big project!

> Here is the repo btw https://gitlab.com/pointswaves/pi-camera but i am
> hoping to improve it a lot over the next few weeks, step files, fixes, how
> to make the full sdcard image etc. But with Fosdem and Soocon I have been
> pretty busy recently..
> 
> Thanks everyone for all the hard work that has been put into libcamer to
> make this possible.
> 
> Kieran mentioned that there was a sensor with a 1" area, do we have a list

https://www.willwhang.dev/OneInchEye/ is the sensor module I was talking
about, which is interesting because Will has released the module as open
hardware.

I expect the IMX283 to get upstream support in the near future for
Kernel and libcamera. The IMX585 would be another interesting sensor as
well perhaps.

I have both a OneInchEye from Will, which was from a limited batch run
from what I understand, but I also have an IMX283 from Arducam which I
believe is likely to be this:

https://www.uctronics.com/arducam-20mp-imx283-camera-module-with-m12-mount-lens-and-adapter-board-for-depthai.html

Even though the URL states M12 mount, the page references as a C-Mount,
and that's how the modules I have are constructed. I believe it's
possible to get C-Mount convertors to various DSLR lens fittings
(without electronic connections).

> of supported cameras? I would like to think about which sensor would be
> best for this camera, i would really like to be able to use normal DSLR
> lenses.

For a shortlist of supported cameras on RPi:

https://git.libcamera.org/libcamera/libcamera.git/tree/src/ipa/rpi/cam_helper

But the point of libcamera is that this is not a restrictive list. Any
sensor with a driver in the kernel can be added to this list if you are
willing to do the initial tuning's required.

> Hope your well
> Will

Look forward to meeting again at the next conference or libcamera
workshops.

--
Kieran