what are effective pixels in security cameras
Hi sir, Could you please tell me how do we get 540 TVL when you multiply 768 and 494
Effective pixels = 768 (Horizontal) X 494 (Vertical) Horizontal resolution = 540 TV lines.Answer:
The math is a little more complicated than just multiplying the effective pixels in order to achieve the actual TVL (TV Lines) of resolution.
I won't go into the math because it really doesn't matter. You can evaluate any security camera by knowing what resolution it is.
I have a long article about resolutions and how it relates to Capture, Displaying and Storing. Each is a little bit different.
You can read it here. CCTV Resolution
Security Camera Expert
Click here to post comments
Join in and write your own page! It's easy to do. How? Simply click here to return to Ask the Security Camera Expert.
Enjoy this page? Please pay it forward. Here's how...
Would you prefer to share this page with others by linking to it?
- Click on the HTML link code below.
- Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment,
your Facebook account, or anywhere that someone would find this page valuable.
Get FREE home security quotes now!
Just fill in the form below.