born2ride
Getting the hang of it
Is there advantage or disadvantage using 2048x1536? I an just playing around, I did notice the viewing angle changed but that's about it.
The field of view is significantly different both horizontally and vertically with 1920x1080 video compared to 2048x1536, and careful analysis reveals that the sensor is not even 2048x1536 native resolution, but instead the camera is most likely upscaling from about 1700x1275 to produce 2048x1536 video.The change of viewing angle is due to the different image ratios 2048/1536=1.33 and 1920/1080=1.11. Therefore there is no change of optical viewing angle due to the lens which of course is fixed, it is only a digital change of view. The image sensor in the camera is the same and its native resolution is 2048x1536.
MaxIcon on Cam-it.org said:The Hik sensor appears to be about 2.5MP, with sensor resolution of 1275x1920, for an aspect ratio of 3:2. Assuming the 1080p image is true 1080p, the 3MP image is actually a 2.2MP image, scaled up 120% to give an apparent 3.2MP image (note that MP scales with the square of the horizontal and vertical resolution).
I set mine at the full 3 MP. Comparing some images taken at 3 MP vs 1080P I could see a definite clarity difference. Further to aster1x's post, if you don't want to use too much bandwidth, just lower the frame rate. I'd rather have 3MP @ 15 FPS than 2 MP @ 24FPS. In fact, I'd rather have 9 MP @ 5 FPS than either of those