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I'm planning to buy cheap optical zoom security camera. But i don't have any idea how much this 50mm lens zooms in real life. If 6 ft tall person fills view and then i zoom in full 50mm then how much i can see this person, half a person or just head or what??? Another question: is there any place where is better selection of this type of small cheap security cameras with zoom? The more zoom the better. http://www.securitycamera2000.com/products/50mm-Lens-WDR-HD-700TVL-SONY-CCD-EFFIO%252dP-OSD-Mini-Camera.html?setCurrencyId=4 Thanks

I try to find cheap zoom camera, minimum 10x optical zoom. It can be without case because it comes to my electronics project and is used indoors only. Cheapest 10x optical zoom camera i have found costs $300. Thanks