Re: *UPDATED* Canon EOS 5D Mark IV Specifications & Image
Just adding more FPS to stills and videos isnt that simple, it requires an entire system designed for that speed.
Many people are failing to take into account the analog to digital converters, and how their speed influences noise. The more pixels they need to process (either from a higher resolution sensor OR from a higher framerate) the higher the noise (noise from the ADC which is just one of the many sources of noise).
So, adding more resolution, adding a higher framerate, or a combination of both results in more noise from the analog to digital converters. They probably had to compromise on some things in that regard too.
Another thing is heat. Having lots of pixels read at a fast speed requires a bit fat heatsink, like in the 1DX II.
Another issue is battery power... all that processing needs more power to occur. Also, for stills, you will probably need to focus quicker to be able to get those high framerates, which requires higher battery voltage (like the 1DX mark II has).
Another issue is the mirror speed/loudness/power draw which tends to be louder for the faster 1DX II. (keep the speed lower to keep it quieter and less power hungry).
For 4K 60fps, faster storage is needed.
So... to get those higher speeds... the 5D mark IV would probably need:
a huge heatsink (and therefore bigger body)
a bigger, more powerful, higher voltage battery (and therefore bigger body)
a faster mirror mechanism (which would therefore be louder and require that bigger battery)
CFast for 4K 60fps
This camera would need even faster ADCs (more noise) and probably an even more robust heatsink, since we are now reading from a 30 megapixel sensor instead of a 20 megapixel sensor.
Canon wants things to be reliable and wont release products that overheat, freeze and have poor battery life like some competing products.
We can't have it all... there have to be compromises.
What about the 7D Mark II you may ask? It does 10 fps! Yes it does... but the mirror in the 7D mark II is much smaller and requires less power to move than a full frame mirror. It is also a 20 megapixel sensor.
More FPS = more power... the 1DX mark II NEEDS the new battery to flap that mirror at 14 FPS... if you put a 1DX battery in it... it will only do 12 FPS.
We're getting close to the limit of what can be done with the current battery tech... a newer and more powerful battery will be needed for faster (full frame) framerates, unless some other major technological breakthrough occurs.
My guess is that going to 8FPS would not require a 2nd digic processor... of course this is just a guess... and this might be another limiting factor. 60FPS @ 4K would certainly require it.
Just adding more FPS to stills and videos isnt that simple, it requires an entire system designed for that speed.
Many people are failing to take into account the analog to digital converters, and how their speed influences noise. The more pixels they need to process (either from a higher resolution sensor OR from a higher framerate) the higher the noise (noise from the ADC which is just one of the many sources of noise).
So, adding more resolution, adding a higher framerate, or a combination of both results in more noise from the analog to digital converters. They probably had to compromise on some things in that regard too.
Another thing is heat. Having lots of pixels read at a fast speed requires a bit fat heatsink, like in the 1DX II.
Another issue is battery power... all that processing needs more power to occur. Also, for stills, you will probably need to focus quicker to be able to get those high framerates, which requires higher battery voltage (like the 1DX mark II has).
Another issue is the mirror speed/loudness/power draw which tends to be louder for the faster 1DX II. (keep the speed lower to keep it quieter and less power hungry).
For 4K 60fps, faster storage is needed.
So... to get those higher speeds... the 5D mark IV would probably need:
a huge heatsink (and therefore bigger body)
a bigger, more powerful, higher voltage battery (and therefore bigger body)
a faster mirror mechanism (which would therefore be louder and require that bigger battery)
CFast for 4K 60fps
This camera would need even faster ADCs (more noise) and probably an even more robust heatsink, since we are now reading from a 30 megapixel sensor instead of a 20 megapixel sensor.
Canon wants things to be reliable and wont release products that overheat, freeze and have poor battery life like some competing products.
We can't have it all... there have to be compromises.
What about the 7D Mark II you may ask? It does 10 fps! Yes it does... but the mirror in the 7D mark II is much smaller and requires less power to move than a full frame mirror. It is also a 20 megapixel sensor.
More FPS = more power... the 1DX mark II NEEDS the new battery to flap that mirror at 14 FPS... if you put a 1DX battery in it... it will only do 12 FPS.
We're getting close to the limit of what can be done with the current battery tech... a newer and more powerful battery will be needed for faster (full frame) framerates, unless some other major technological breakthrough occurs.
My guess is that going to 8FPS would not require a 2nd digic processor... of course this is just a guess... and this might be another limiting factor. 60FPS @ 4K would certainly require it.
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