Some of them could be true. There are many cases where strange figures or anomalies are caught on camera that can't be easily explained. However, some might also be faked for attention or due to camera glitches.
One of the famous ones is the Brown Lady of Raynham Hall. A photo taken in the hall seems to show a ghostly figure on the staircase. Another is the Amityville Horror case where some claimed to have captured strange things on camera during the supposed hauntings.
The cost of a camera was a complicated problem that involved many factors. According to documents [1] and [2], the cost of the camera module is estimated to be $77 (about $493), and it will continue to increase with size and price. In addition, the camera also included optical image stabilization, image sensors, and LiDAR sensors. The application of these technologies improved the stability and functionality of the camera, but it also increased the cost. According to the document [4], the total cost of the iPhone 13 ProMax was $438 (about 2800 yuan), of which the display accounted for 20% of the total cost and the camera accounted for 17.6%. However, the search results did not provide clear information about the specific details of the camera's cost and other factors, such as research and development costs, manufacturing costs, and customs duties. Therefore, it was impossible to accurately answer the question of the cost of the camera.
The Enfield poltergeist is indeed a real - life case. It happened in the late 1970s. The Hodgson family, who lived in Enfield, reported all kinds of spooky stuff. Doors slammed shut by themselves, voices were heard that didn't seem to come from anyone in the house. Some people think it was a hoax, but others believe there was something truly paranormal going on. There were even some pictures and recordings made during the time of the events, which added to the mystery.
No, it isn't. Poltergeist is purely a creation of the filmmakers' imagination. It's designed to scare and entertain rather than being rooted in reality.