installed "no fisheye" lens from http://www.surveilzone.com/
https://www.youtube.com/playlist?list=PLPXKHPxnmqQF2JjC3XSSsEKt4lRRWIadZ
https://www.youtube.com/playlist?list=PLPXKHPxnmqQF2JjC3XSSsEKt4lRRWIadZ
sorry, my fault, should post direct link:Where is the link to the "no fisheye" lens?
When I search for "fisheye" or "no fisheye" on that surveilzone Site, I get no results.
WTF......... that's a lot of lens thread going somewhere.
installed "no fisheye" lens from http://www.surveilzone.com/
https://www.youtube.com/playlist?list=PLPXKHPxnmqQF2JjC3XSSsEKt4lRRWIadZ
IThanks, It is easy to do, just carefully remove the glue fixing the lens.
check here: (start from 8 minutes 36 sec of video)
to check focus after lens change I used micro HDMI cable connected to large screen TV and pointed camera out of the window. Also you can take a picture and then check focus, if bad just turn lens a little bit and take a picture again.