Yes, multi-layer chip design is becoming more and more feasible, so this can help with the global shutter issues. As someone else pointed out, a fixed pattern noise could be eliminated in software, as long as the pattern is read first.
I wish people/the market demanded global shutter more. I don’t need 6k or 8k, I just need unmolested spacial information so my camera tracker can track more efficiently. Rolling shutter has ruined more shots for than me than lack of dynamic range.
The complete lack of information about how long one progressive scan takes for each camera is really unhelpful, too. And unfortunately it's something people only notice when, as you say, it ruins the shot. Bad jello from consumer hybrid video cams is common and definitely persceptible
Rolling shutter CMOS sensors actually scan from bottom to top. Also Sony Semicon's direction is pixel-parallel ADC (compared to current column-parallel ADC) which does not require memory to store a charge.
What intrigues me is that old ccd sensors had global shutters but were completely abandoned in favor of cmos.. I understand they weren’t great at higher ISO’s and used more power but they could still be useful in other situations
so true! I don't understand why CCD sensors were replaced by CMOS when I've always heard that CMOS was a worse technology. Do you remember the days when pro cameras had 3-CCDs and the webcams had CMOS? Why CCD technology didn't improve?
As far as I know, the main reasons for this shift were lower power consumption, easier manufacturing and lower cost for the CMOS. Also, they are easier to integrate within other circuits. As far as 3CCD, I’ve seen 3CMOS cameras. Triple sensor setups are better for color reproduction as all pixels are sampled in RGB, but they are more complex as the 3 sensors must be well aligned and secured in place. Also (don’t quote me on this) I think this arrangements require different lens designs.
@@VicenteSchmitt CCDs have better sensitivity and lower noise. Well, at least in the past was like this. Not sure if CMOS tecnhology nowadays has surpased CCDs.
How come CCDs never had these issues? I don't recall there ever being a problem with data transfer at 2K from 3 CCDs at 24 or even 60 frames a second... Either this is too apologetic or complicit with the manufacturers to inflate prices.
Are CCDs global shutter by definition? if global shutter makes a sensor less sensitive would it be a good idea to increase the size of the sensor to counterbalance the effect? Thanks for these fantastic videos.
CCDs aren't always Global shutter, but when they were in cameras they are used as such. CCD sensors are already more expensive to produce than Cmos/mos sensors. Having a bigger CCD sensor with a larger surface area would only make the production of CCD sensors for camera systems even more expensive, let me explain. if the sensor is larger the lenses and camera system have to be larger as well, this would drive up the cost, which would be insane since the only benefits would be increased dynamic range and low light sensitivity, at that point it would be cheaper to use Cmos/Mos sensors to achieve the same result.
I was just going to say you should do a video about shutter angles next, sarcastically, because these things are getting so basic. Apparently, however, there is a giant swath of people who have no idea about the fundamentals of filmmaking.
Elliott Russell of course not everyone is an expert, but these are rudimentary topics that take all of 30 seconds to Google. If you are curious about shutter angles, just look it up... don't wait around for a camera shop to make a video for you.
@@daltonrandall4348 Where can I find the information about filmmaking I don't know that I don't know? It wasn't until today that I found out that gain doesn't apply just to audio signals, but applies to any electronic signal, like from a camera sensor. I work with cinema cameras from Red, Canon, and Sony on a regular basis. I have directed commercial shoots for a handful of world famous celebrities. I graduated from a film program in college. I have read hundreds of articles and books about electronic signals, audio production, and filmmaking in general. I've been in the video and film production industry for only 6 years, but damn, I thought I at least knew the basics. So now I'm stuck here wondering, "How could I have not known this sooner?" How is it possible that through all the material I've tried to learn from that I missed this key concept? I'm frustrated at myself and at some of my past teachers. Now I feel like I don't even know what questions to ask, so I guess I'll start with just one. How can I learn the information about filmmaking that I don't realize I don't know?
Probably the last person on earth watching this, but… I still wonder why we don’t see any full frame global shutter, while we have had them for a while now on for example broadcast cameras?
I really enjoy this series with Mr. Chapman. Hope you can keep him for a long time :)
Surely, if the noise is a fixed pattern and never changes then a fixed pattern of correction could be applied...?
Yes, multi-layer chip design is becoming more and more feasible, so this can help with the global shutter issues. As someone else pointed out, a fixed pattern noise could be eliminated in software, as long as the pattern is read first.
This episodes are amazing! Thanks for the information!
I wish people/the market demanded global shutter more. I don’t need 6k or 8k, I just need unmolested spacial information so my camera tracker can track more efficiently. Rolling shutter has ruined more shots for than me than lack of dynamic range.
The complete lack of information about how long one progressive scan takes for each camera is really unhelpful, too. And unfortunately it's something people only notice when, as you say, it ruins the shot. Bad jello from consumer hybrid video cams is common and definitely persceptible
Dolly Rancher - that is useful info and would influence what camera I might buy or rent.
Rolling shutter CMOS sensors actually scan from bottom to top. Also Sony Semicon's direction is pixel-parallel ADC (compared to current column-parallel ADC) which does not require memory to store a charge.
What intrigues me is that old ccd sensors had global shutters but were completely abandoned in favor of cmos.. I understand they weren’t great at higher ISO’s and used more power but they could still be useful in other situations
so true! I don't understand why CCD sensors were replaced by CMOS when I've always heard that CMOS was a worse technology. Do you remember the days when pro cameras had 3-CCDs and the webcams had CMOS? Why CCD technology didn't improve?
As far as I know, the main reasons for this shift were lower power consumption, easier manufacturing and lower cost for the CMOS. Also, they are easier to integrate within other circuits. As far as 3CCD, I’ve seen 3CMOS cameras. Triple sensor setups are better for color reproduction as all pixels are sampled in RGB, but they are more complex as the 3 sensors must be well aligned and secured in place. Also (don’t quote me on this) I think this arrangements require different lens designs.
@@VicenteSchmitt CCDs have better sensitivity and lower noise. Well, at least in the past was like this. Not sure if CMOS tecnhology nowadays has surpased CCDs.
How come CCDs never had these issues? I don't recall there ever being a problem with data transfer at 2K from 3 CCDs at 24 or even 60 frames a second...
Either this is too apologetic or complicit with the manufacturers to inflate prices.
I hoped you would mention the upcoming red Komodo
Are CCDs global shutter by definition? if global shutter makes a sensor less sensitive would it be a good idea to increase the size of the sensor to counterbalance the effect? Thanks for these fantastic videos.
CCDs aren't always Global shutter, but when they were in cameras they are used as such.
CCD sensors are already more expensive to produce than Cmos/mos sensors.
Having a bigger CCD sensor with a larger surface area would only make the production of CCD sensors for camera systems even more expensive, let me explain.
if the sensor is larger the lenses and camera system have to be larger as well, this would drive up the cost, which would be insane since the only benefits would be increased dynamic range and low light sensitivity, at that point it would be cheaper to use Cmos/Mos sensors to achieve the same result.
This is why I just use film, none of this computer nonsense. thanks for the video.
I would 100% love to see Alister talk about shutter angles. It's something I've never really used and never looked into.
I was just going to say you should do a video about shutter angles next, sarcastically, because these things are getting so basic. Apparently, however, there is a giant swath of people who have no idea about the fundamentals of filmmaking.
@@daltonrandall4348 what a shit thing to write. Not everyone is an expert with years and years of experience. Take it somewhere else.
Elliott Russell of course not everyone is an expert, but these are rudimentary topics that take all of 30 seconds to Google. If you are curious about shutter angles, just look it up... don't wait around for a camera shop to make a video for you.
@@daltonrandall4348 exactly 👌😀
@@daltonrandall4348 Where can I find the information about filmmaking I don't know that I don't know? It wasn't until today that I found out that gain doesn't apply just to audio signals, but applies to any electronic signal, like from a camera sensor. I work with cinema cameras from Red, Canon, and Sony on a regular basis. I have directed commercial shoots for a handful of world famous celebrities. I graduated from a film program in college. I have read hundreds of articles and books about electronic signals, audio production, and filmmaking in general. I've been in the video and film production industry for only 6 years, but damn, I thought I at least knew the basics. So now I'm stuck here wondering, "How could I have not known this sooner?" How is it possible that through all the material I've tried to learn from that I missed this key concept? I'm frustrated at myself and at some of my past teachers. Now I feel like I don't even know what questions to ask, so I guess I'll start with just one. How can I learn the information about filmmaking that I don't realize I don't know?
Biggest problem is that im having a hard time finding the right video camera with a global shutter to capture fast lightning strikes
Probably the last person on earth watching this, but… I still wonder why we don’t see any full frame global shutter, while we have had them for a while now on for example broadcast cameras?
😍😍😍