This means that when a 3D object comes hurtling towards you

This means that when a 3D object comes hurtling towards you, your eyes turn, but the lenses do not change shape.Judy Barrett of the Australian Defence Science and Technology Organisation says this sort of entertainment magic often leads to something called cybersickness. It starts with eye strain and headache and eventually replica Rolex 16610 Men's Watch leads to nausea through prolonged use.Right now most of us experience 3D in small doses. We use it for a couple of hours while watching a movie. I've used it while gaming, but I begin to get a headache a couple of hours in, and have had the odd bout of queasiness. Luckily enough my lunch has stayed inside my body, but I'm just greedy about my food.Folks using 3D for gaming might be better off than those that use it for watching television or movies, however.

A game producer (or director of a computer animated film for that matter) has much more control over the images and how they are presented to an audience.Animated 3D tends to have the lowest chance of unintentional ill effects, says Juan Reyes of BluFocus, a consultancy to the TV industry in Toluca, California, because directors have total replica Rolex 16618 Men's Watch control over the images. Conversely, live-action 3D is full of potential problems. 3D filming requires two cameras to point at a scene from different angles, which means distracting effects can creep in, such as reflections in only one channel.

What's more, visual techniques that work for directors in two dimensions can be nauseating in three, such as quickly cutting between shots at different depths, says John Merritt of the Merritt Group, a 3D entertainment consultancy. Sports coverage is particularly prone to uncomfortable effects, because the action can't be choreographed at all. In addition, spectators close to the camera may suddenly pop into a shot, appearing in the replica Rolex 16618B Men's Watch viewer's lap in a flash.So far my biggest sickness complaint about 3D entertainment has been the price of 3D televisions. I'm sure I'll find a nice unit on sale and begin a regiment of home 3D gaming and movie watching, but not before covering my furniture in plastic. You can never be too careful.