Comment on Canon requires an account to transfer images from your camera. Forces you to sign up using Chrome.
perestroika@lemm.ee 4 weeks agoAutofocusing external lenses is a real problem. Fuck the lens makers indeed, as a result of which I’ve only used Raspberry Pi with manual focus.
Depth of field is a property of the lens, not the sensor.
Sensors: if you want to take pictures in starlight, you can get IMX585 (hard due to market problems). If you want lots of pixels, 64 M is not a problem. If you want to photograph a bullet, you can get the global shutter sensor.
Ready-made models with IMX283 can be had with zero tinkering.
arducam.com/arducam-pivistation-5-klarity-20mp-im…
Cameras can be homebrewed, big integrators like Canon overcharge too much.
falkerie71@sh.itjust.works 4 weeks ago
Well that’s certainly a problem, isn’t it? You don’t know what OP does with their camera, if it’s a hobby or for a living. Go try suggesting building a RPi camera kit to sports photographers, see if they give a fuck about it.
DoF has everything to do with sensor SIZE. You are simply never going to get the level of shallow depth of field with tiny sensors compared to even M43 or bigger sensors. You are simply never going to get the ISO performances or dynamic range of a bigger sensor because the photosites are just physically huge compared to those in phone camera sensors. Even a cheap old 12MP DSLR is going to destroy the images quality coming out of the best 64MP rpi camera kit, not even a question. And not to mention all the other functions a modern camera has, like weather sealing, subject detect autofocus, auto white balance, color science, image stabilization, etc.
I count 3 different sensors for each scenario now, and you even know their downsides. What makes you think OP is willing to deal with these? The global shutter sensor is a 1.6MP sensor. Yeah, that absolutely can replace the gear that captured the photo of the bullet whizzing by Trump and won the Pulitzer prize.
perestroika@lemm.ee 4 weeks ago
I’m not interested in whether the OP is even interested in open architecture or DIY. I’m pointing out that alternatives exist, and they are decent alternatives.
Capturing a photo of a bullet that’s been slowing down for 300 meters is not a great technical feat. Go try to buy a ballistics camera from Canon, see how much you end up paying.
falkerie71@sh.itjust.works 4 weeks ago
And I’m pointing out that those alternatives in practicality are not even close. Suggesting a hobby project out of the blue when OP is not even asking for it is just dumb.
You just missed my point about the 1.6MP elephant in the room. And that’s just ignoring every other camera feature used to take the shot, which you would have to manually dial in with your rpi camera. You are simply not going to do that in the chaos.
perestroika@lemm.ee 4 weeks ago
For your information, a global shutter sensor is not required in that scenario.
A global shutter is advisable if you want to get detailed video of a fast moving object that fills a large percentage of the frame, without distorting the shape of the moving object. With rolling shutter, you still see, but get a distorted (elongated) moving object.
It follows that you don’t need global shutter, and you don’t care about autofocus. Merely using fast exposure and having a big lens (enabling you to use fast exposure) it will be sufficient.
You also need luck, of course. I think the photographer who snapped that shot had a considerable amount of luck. They weren’t fumbling on their bag for a better camera. They were already taking a photo, most likely. Things just happened at the right time for them.