stevenn21

i bought some cameras and a dvr on ebay the cameras are: http://www.ebay.co.uk/itm/171411858753?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT they are supposed to be sony effio a chip 800tvl but the picture is grainy they are better than the fake ones i sent back but not by much. i have set the zoom and focus to the best configuration possible for this application but this is the best image i can get. the window is dirty im talking about the writing on the plant pots ect its supposed to be 40m night vision but it cant see out of the window at nightime its pure black im using this dvr: http://www.ebay.co.uk/itm/171377443192?_trksid=p2059210.m2749.l2649&var=470426919269&ssPageName=STRK%3AMEBIDX%3AIT i bought the dvr and cameras from the same seller and i am using this cat5e cable: http://www.ebay.co.uk/itm/221457618366?_trksid=p2055119.m1438.l2649&var=520326486163&ssPageName=STRK%3AMEBIDX%3AIT and i am using the same ballins as the ones in the cat5e listing. the cable seems to be quite fragile and the copper breaks easily is this the best cable to use? is the cable why the picture is so bad? should i return the lot and get some ip cameras? i just sold a ip camera to my mom and the picture quality was much better than this any help would be greatly appreciated thanks in advance steven