| 2 | Camera | Q. What is DOF? And, What is difference between deep DOF and shallow DOF? | 2013-04-28 |
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A.
DOF (Depth of Field) refers to the range of distance that the subject appears acceptably sharp. DOF is determined by several factors such as aperture size, a lens to subject distance, lens focal length, and image sensor size. |
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| 1 | Camera | Q. What are the main differences between indoor and outdoor cameras? | 2013-04-28 |
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A.
Surveillance cameras can be classified as indoor and outdoor models according to the installation place. The main difference between the two models is whether the camera is weather-proof or not. That is, the outdoor camera does completely protect the inner material from weather like wind, rain, moisture, dust, snow, and humidity. Some outdoor cameras should have a heater or blowers for temperature resistance. On the other hand, indoor cameras do not require weather-proof or temperature resistance except critical places which get high humidity or high/low temperature. |
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