Hermecury starts to ship the global 1st 4K 4x ePTZ camera with the leading functions

VS-20

1. Auto-focus, keep best and clean face image, without manual operation

2. Auto-framing, use digital zoom-in max 4x options 

3. External streaming out connector: USB3.0

What is ePTZ and how does ePTZ compare with true PTZ?

ePTZ uses the technology of digital zoom to provide true PTZ-like features on a fixed (non-PTZ) camera. Digital Zoom works by simply magnifying pixels. When you do this, you are essentially focusing only on a portion of the entire camera image at any given time and magnifying it to fill the entire frame. Since you are only viewing a portion of the image at any given time, you can now move that ‘area of interest’ across the entire camera image to affect a pan and tilt effect (without moving the camera head). So digital zoom not only allows you to ‘zoom’ in on an image but also to move around within that image when zoomed.

However, there are advantages and disadvantages to using digital zoom and ePTZ.

The main disadvantage is that you are magnifying pixels to accomplish digital zoom. This results in reduced resolution. For example, a 4K video camera digitally zoomed in at 3x, results in a final video resolution of only 720p (a loss of total resolution of 88.9%). This is a very significant reduction in resolution and image quality. Therefore, you need to consider your application and its needs before deciding whether ePTZ can work in your application or you should instead invest in a true PTZ camera. One simple example would be if your streaming output or final file resolution is only going to be 720p, then a 4K camera with ePTZ limited to 3x will be sufficient, as the higher resolution is not required in the final product.

Now the global 4K ePTZ camera is from the supplier of ValueHD, of which the competiting model is shown as below

VHD-JX1700

If you can find the same looking of this camera, they're OEM or branded from ValueHD. Let's make a short comparison between us

Hermecury marketing team