Any point to a USB3 camera, for home use?...

M

micky

Guest
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
 
micky wrote:OE
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

If I were going to this I would use Ethernet POE cameras and at least a
4 port POE switch. The cameras could then be 4k or better if you wanted
that much resolution, plus night vision. I would not even consider USB.
 
micky wrote:OE
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

If I were going to this I would use Ethernet POE cameras and at least a
4 port POE switch. The cameras could then be 4k or better if you wanted
that much resolution, plus night vision. I would not even consider USB.
 
micky wrote:OE
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

If I were going to this I would use Ethernet POE cameras and at least a
4 port POE switch. The cameras could then be 4k or better if you wanted
that much resolution, plus night vision. I would not even consider USB.
 
On 12/19/2022 3:07 PM, micky wrote:
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

Here is an article reviewing some webcams and comparing
to slightly better devices. The $50 webcam at the bottom does
a surprisingly good job, but it is fixed focus and highly unlikely
to serve any purpose except Zoom.

https://reincubate.com/support/how-to/why-are-webcams-bad/#why-are-webcams-so-bad

Paul
 
On 12/19/2022 3:07 PM, micky wrote:
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

Here is an article reviewing some webcams and comparing
to slightly better devices. The $50 webcam at the bottom does
a surprisingly good job, but it is fixed focus and highly unlikely
to serve any purpose except Zoom.

https://reincubate.com/support/how-to/why-are-webcams-bad/#why-are-webcams-so-bad

Paul
 
On 12/19/2022 3:07 PM, micky wrote:
IIUC there is no point to trying to find a USB *THREE* port for a mouse
or keyboard, right? USB TWO is plenty. Because so little data is
transmitted.

What about a camera?

I know it uses a lot more, but even at the highest reolution, is it more
than USB2 can easily transmit?

What about a camera whose video will never be showing on a anything
bigger than a 20 or 24\" monitor?


BTW, just for curiosity, do they sell at consumer prices a camera good
enough to show a picture on a movie theatre screen. maybe 10 feet high
by 30 feet wide. Would that be helped by USB3?
Click to expand...

Here is an article reviewing some webcams and comparing
to slightly better devices. The $50 webcam at the bottom does
a surprisingly good job, but it is fixed focus and highly unlikely
to serve any purpose except Zoom.

https://reincubate.com/support/how-to/why-are-webcams-bad/#why-are-webcams-so-bad

Paul
 
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