f1.2 aperture lens

[akv 0]

hi

i need to get a camera, will be on the street outside my house. it's analog ccd camera.

the light at night is not that good. i have option to upgrade the lens from f2.0 to f1.2, a little more expensive.

my concerns are:

1. how is the sharpness of the f1.2 (it's china lens, not brand)

2. i live in country with lots of sun. i concern that it will be overexposure at day light

what do you think?

 

thanks

[jazzar 0]

for fstop info see :-

http://www.uscoles.com/fstop.htm

looks like your smaller f value will double the amount of light.

If its on a decent camera -the camera should have an AUTO IRIS facilty which will open and close automatically for the camera to work in bright and dark scenes.