I been installing cameras for a while and i haven't find any help on how to do most of the basic fictions and setups until now. I work for EasternCCTV and they have a large number of videos on their youtube channel regarding camera video quality and tutorials.
This guy that i had seen before on other technical videos seems that now he's working with easterncctv. His tutorials are very good and he had helped me quite a lot by his videos. they seem to have many more videos so i tough i can share this with you guys and maybe this little guy can help you.
Here is the link for the tutorial PLAYLIST
Their youtube channel is this one
i subscribed already because they seem to be very active on the channel.
hope this helps
William Yao.