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So I am trying to think of where a PTZ is useful.. a) there is a live operator that can move things around (RI/Real Intelligence) b) where you need high zoom level (e.g. Haven't seen fixed cams with 140mm lens) c) Where you want to be able to reposition w/o a screw-driver and a ladder...

@tibimakai, so what your saying is that the motion tracking on these cameras is not to a level that should be considered for a real security camera needing to cover multiple angles?

@mat200: Thanks for replying, I found this model breakdown says that the "5" vs "4" is simply the size of the dome. The "9" is the same indicating the same "type" of dome (IR speed dome). So I am pretty sure they are in the same class except the HNI vs HNR, the "R" is new enough that it is not...

I am trying to research cameras and after lurking here for a while, I am having problems reconciling the pricing I am seeing on some of the cameras. SD59225U-HNI (25x): Is going for $500-$600 and appears to be 1-2 years ago top of the line? SD49225XA-HNR (25x): Is going for ~$400 and appears to...