A Truely Super Telephoto LensWhen we look for super telephoto lens, just how super does the lens have to be to qualify. There are Canon Super Telephoto Lens available from the 100-400 mm zoom, to the 400 mm, to the 500 mm, to the 600mm and up to the 1200 mm lens. It can not be the size alone that earns them the title of super as the range in size covers the board. Then what is it that makes them super? The Canon Super Telephoto Lens start out with a multi-layer diffractive optical element. The development of this technology has taken over 100 years and actually started with Albert Einstein's General Theory of Relativity. The Theory of Relativity in 1916 eventually led to discovery of a phenomenon known as the Gravitational Lens Effect once again led to the 1979 discovery of an object acting as a gravitational lens. These are a lot of big words but the true proof of the result of this research comes from looking through the view finder of a Canon camera equipped with a super lens.
This revolutionary discover has enabled Canon to shorten their lens and in turn lower the weight. People that use the lens say this alone has opened more opportunities for photography because they are not so fatigued from the weight. When the lens became shorter the center of gravity moved closer to the camera. The closer the center of gravity is to the camera the easier it is to balance the camera and in turn keep unwanted movement out of the lens. To put the frosting on the cake, each Canon Super Telephoto lens comes with the image stabilizer (IS) and ultrasonic motor for fast focusing. The image stabilizer is a gyro control that senses movement in the horizontal and vertical planes and takes action to compensate for that movement. The end result is that even though you might shake or sway, the camera will compensate. Horizontal movement correction can be disengaged to allow the photographer to pan for fast moving sports shots. The focusing motor on the Canon Super Telephoto Lens will automatically focus the lens by speedily moving the focus in the required direction and then torquing down to stop the movement so the focus is not over shot. The Canon Super Telephoto Lens come in on the high side but are worth the extra money. For example a recent search of prices on the internet revealed the following prices. Canon EF 100-400mm $ 1,837.50 Canon EF 400 mm $ 1,099.00 Canon EF 500 mm $ 6,423.99 Canon EF 600 mm $ 7,600.00 Canon EF 800 mm $18,164.00 Canon EF 1200 mm $99,000.00 |