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How does an infra-red camera work?
Infrared (IR) photos are taken with normal cameras using infrared film. The difference is the film used, not the camera. IR film is sensitive to the IR spectrum of light, not the visible spectrum.
What do traffic cameras at traffic lights look like and do they flash or click when they take a picture?
At most intersections, you will see little cameras at the top of the light. They look like little tubes. These are not red light traffic cameras. They are sensors used by the traffic light to control whether its a green light or red light. Actual red light cameras are usually bigger and are placed on the curb on its own pole. They usually have a flashlight to take pictures. They flash at night when taking pictures.
Do red light cameras effect your insurance rates if you get caught by one?
== == YES. If you are CONVICTED of running a red light, your insurance will GO UP. It is a sure sign that you WILL have an accident, soon.
What equipment do you need for infrared photography?
The equipment you need for infrared photography is as follows. First you need a camera that can capture infrared light, which you check if it can do or not by turning it on and pointing a remote control at it and see if you can notice a red tint or light. Second you need to get some filters that can help trap the light and make your images more clear/have less light leak which means that you will have better quality images.
Why does yellow or green eye Occur on dogs when you use a flash on a camera?
For humans, when you flash the cam, red eye occurs. That's because the flash passes through the eye and is reflected off the retina and the blood vessels of retina impart the red colour to the out coming reflected light. More detailed: You see an object when light reflects off it. The colour of the object is the colour not absorbed by it from the incident light. Blood is red because it does not absorb red colour. When you send heavy light in the form of a flash, a large magnitude of red colour goes unabsorbed and the eyes' reflected light's red component becomes significant which is noted as red eye. If there is no flash, the atmospheric light getting reflected off the retinal blood vessels is not intense enough forthe red component to be distinguishable from the other lights. Similarly, dogs and cats have a tapetal layer in addition to retina. And this tapetal layer is of green or yellow colour depending on the animal species. The flash passes through the tapetal and retinal layer. The colour of the tapetal layer is imparted on the reflected light.
