Hello everybody, Paul Richards here chief streaming officer for PTZOptics.
Hi guys I'm Andy Chatfield I'm head of tech support here. And here we are, another
Tuesday tech support Tuesday.
Yup. And what are we going to talk about today, Andy? So today I wanted to keep it pretty light
and just go over the all the possible resolutions that the PTZOptics cameras
especially the gen2 cameras can output, and how you achieve those signals what's
the difference between them, a little bit with interlaced vs progressive, NTSC vs PAL
and then I want to explain the difference of solid frame rates versus
broadcast framerates. So I'm overlaying this, but do you want me to show it full screen?
Oh you can show it like this, these are the different resolutions the PTZOptics
cameras can output. Starting at 1080p60 all the way down to 480i if you need a composite signal.
So basically you can see the cameras mostly do progressive signals of the
1080p, we do have a couple of interlaced signals as well. A 1080i60, 1080i50.
What's the difference between progressive and interlaced?
Basically it all has to do with the frame rate and how it refreshes the
frames the cameras refresh the frame so basically with progressive, it's
refreshing the entire image every frame. So at 1080p60 it's refreshing the entire
screen 60 times a second. 1080i60, it actually refreshes half of those the the frames every second.
So if you think about it like an American flag it's going to do all of the
white stripes one frame, and then all the red stripes the next frame. So 1080i60
and 1080p30 are very very similar.
They use the same amount of bandwidth, it's just 1080p30 is probably gonna
be a little bit better for movement and motion and 1080i60 would not. The
576i and 480i are the only two composite signals that we have coming out of the camera,
the only way to access those is to actually set the dial to D on the back
and this is the back of the PTZOptics camera here, you can see the little
system select the blue dial with the yellow thing in the middle,
that's what you're going to use to basically adjust
the resolution of the SDI or the hdmi audio camera. That is the main way
to do it, and every time you make a change you will have to power cycle it.
So as you can see from or as you saw from the the the resolutions that we have up,
we do not have broadcast frame rates inherent to this camera.
Broadcast frame rates are 59.94 or 29.97 our cameras do solid frame
rates: 1080p60, 1080p30, 25...
That's what they do I hear this complaint a lot because a lot of black magic stuff
in particular is really looking for broadcast frame rates which can cause
some some compatibility issues with the cameras, unless you're running at certain
frame rates. To get around this you can use a frame rate converter like the
decimator MD-HX, it works flawlessly but it adds a bit of cost to the system. And
you've got a video on how to use that on our website.
The other thing I wanted to mention about the resolutions to I forgot to
was the difference between PAL and NTSC. NTSC is what we use here in the
states, it's 30 frames at 60 frames power is the resolution they use in
Europe and it's 25 frames and and 50 frames our cameras do both.
So, yeah I think that should be it for the the resolutions of the cameras and
everything like that hopefully you guys know how to now change the resolution on
your camera and you should be able to match it up with just about anything any
piece of gear out there. Feel free to subscribe to our YouTube channel and
we're going to be doing this every week every Tuesday every Tuesday we're
trying to turn a lot of this great knowledge that Andy's giving us into a
course so that you know you can catch up on everything because there's a lot of information out there,
thanks for watching everybody have a nice day.