Pavle
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@TeriTerryTarry Hi Tery, that sounds exciting, I will send you a message right away, to see if we can fit it somehow in our guide.
knows perhaps to clarify the process of what happens when the shutter button is pressed. Light goes through the lens, travels through glass, shutter opens, and there we are on an image sensor. Extremely complicated things happen here, I am close to figuring that out (nearly). What happens next? Data is transferred to a processor? Are there any steps before?
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I am well aware of that, I plan to make both videos and text. There are people who find reading more enjoyable. Especially non-English speaking people who can use translator to understand, etc.there's heaps of YouTube videos that explain this, probably better to have something people can watch rather than read
Actually they do. Some have mechanical shutters , some have electrical and some have bridge, roll, etc. Every camera needs something to keep sensor away from the light, so every camera has a shutter one way or another.digital cameras don't have shutters. even DSLRs don't have them anymore as far as i know. they just record what's being captured by the image sensor at the instant you press the button.
I am well aware of that, I plan to make both videos and text. There are people who find reading more enjoyable. Especially non-English speaking people who can use translator to understand, etc.
Since I can not do animation or anything similar, I will probably just draw it.
What is also a role of a SOC/Chipset besides recording video/photo on to the , then compressing it and then transferring it to the memory card.
Any help is highly appreciate and will help in educating action cam community.
Actually, I am not professional to explain this, the hardware engineer know this better.Anyone from manufacturers representatives here (perhaps @gitup
@JooVuu @jokiin or @sjcam_official
knows perhaps to clarify the process of what happens when the shutter button is pressed. Light goes through the lens, travels through glass, shutter opens, and there we are on an image sensor. Extremely complicated things happen here, I am close to figuring that out (nearly). What happens next? Data is transferred to a processor? Are there any steps before?
What is also a role of a SOC/Chipset besides recording video/photo on to the , then compressing it and then transferring it to the memory card.
I am far from expert in this micro things, but I am trying to learn exact process my self and help others understand it as well ,by writing and illustrating in a simple way.
Any help is highly appreciate and will help in educating action cam community.
actually I meant for yourself if you wanted to learn about the processes involved but maybe there's something suitable you could use on the website also
A SoC is a complicated thing. The simplest way to describe it is it is the 'project manager'. It makes sure the WiFi is behaving, that the image sensor is doing what it should. The only problem is the SoC only has certain capabilities itself. So for instance the Ovi 4869 can actually capture up to 180fps I believe but the A7LA75 (our chip - SOC) cant do that. As such the SoC limits it.
This is a very basic way of putting things but is in essence what happens. Hope that helps!
Dan
Thanks Bill, interesting image.Actually, I am not professional to explain this, the hardware engineer know this better.
Below is some basic info I found from internet.
View attachment 19379
View attachment 19380
Sorry Rick, I misunderstood completely. Indeed there are many videos, but non of them explains how it works in an a.cam. It is quite sad that in 2010-2012 so many useful videos were posted on how camera works topic. Last few years, not many people are willing to go in-depth and explain these things with newer cameras. I guess they are busy being "viral" goofing around.
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Am I right when I say that action cameras use rolling shutter? Do manufacturers have this kind of information? Or is it a global shutter?
oh, there's a whole other can of worms... whether cmos or ccd is better. there's an obvious cost difference from what i understand (cmos is cheaper and uses less power), but there's other considerations, too. i think most if not all space-based imagers today use CCD for their speed, durability and reliability (considering how much radiation there is in space). the new horizons craft that blasted past pluto at something like 36,000 mph or 57,000 km/h. to put that in perspective, a bullet fired from a pistol travels at around 650-750 mph (1050-1200 km/h). the speed of sound (in air) is 767 mph or 1235 km/h. so the fact that new horizons captured as many detailed photos as it did at that speed is pretty awesome. anyway, New Horizons uses CCDs for its imagers.rolling shutter is CMOS, global shutter is CCD