Im just put up a ds-2cd2t32 @4mm on my weather station pole (KTXHOUST423)
So far, I like it, here's a video from last week. But I think I like the cool effect that the 2.8mm brings and may go back to using the Hikvision 2632. The 2632 seems to have a little better image quality too, however it's a pain to manual focus. It just depends on your view. Mine if from my roof with nothing really to see other than clouds.
Set the Quality to 1080P!
I previously had a hikvision 2632 @2.8 mm which make for some cool looking clouds, but if you have a flat horizon, the 2.8mm curves the image.