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Canon EF 500mm 1:4 l IS II USM super telephoto lens features totally redesigned Fluorite optics that deliver sharper images with less chromatic aberration. It also has a lighter weight, thanks to magnesium and titanium construction elements.
Canon EF 500mm 1:4 l IS II USM includes an advanced third Image Stabilization mode (Mode 3) that activates IS only when the shutter button is completely pressed. This is because image stabilization technology in super telephoto lenses may inadvertently over-compensate and interfere with composing and framing distant or moving subjects. The advanced third Image Stabilization mode allows users to pan fast-moving subjects and then activate IS only when it is actually required. Furthermore, all three IS modes give the equivalent effect of a shutter speed four stops faster, which makes Canon EF 500mm 1:4 l IS II USM perfect for professional action photography.
The addition, the Power Focus mode enables smooth focus change when shooting video. Buttons and switches are redesigned for intuitive, deliberate operation, and dust and water sealing keeps Canon EF 500mm 1:4 l IS II USM functioning flawlessly in even the most challenging environments.
Even Lighter, More Durable and Much Enhanced
Canon engineers succeeded not only in reducing the overall weight of these lenses but improving on their optical performance as well. The optical formula of each new lens was re-designed to include two fluorite elements instead of one fluorite and two Ultra-low Dispersion (UD) glass elements. The new lens element configuration weighs less yet performs better. Other factors contributing to the overall weight reduction include increased use of magnesium alloy, use of titanium and a smaller and lighter Image Stabilizer mechanism.
A convenient and useful feature when shooting in the often adverse conditions professionals find themselves in, these new lenses are treated with Canon’s new fluorine anti-smear lens coating. The fluorine layer is highly oil and water repellent so that any oil smears or water droplets on the lens can be wiped off quickly and easily, without the aid of solvents, using a soft dry cloth.
The new Series II EF super-telephoto lenses can correct camera shake up to four full shutter speed steps, compared with two shutter speed steps with their predecessors. This improvement is made possible by a new low-friction stabilizer mechanism that is not only more efficient than the previous design but also smaller and lighter. Other enhancements to the IS systems of both new super-telephoto lenses have enabled quieter operation; ideal for use during video capture.
Canon has developed a third Image Stabilization mode option for its super-telephoto EF lenses. First introduced in late 2010 with the EF 400mm f/2.8L IS II USM, and EF 300mm f/2.8L IS II USM lenses, and now available on the new EF 500mm f/4L IS II USM and EF 600mm f/4L IS II USM lenses, IS mode 3 is designed to provide professional sports and wildlife photographers with greater tracking flexibility. When mode 3 is selected on the lens, the Image Stabilization effect will not occur until the shutter is pressed, making the viewfinder image more natural in appearance while tracking a subject. In mode 3 when the shutter button is pressed halfway, the lens will begin detecting camera or lens movement and only during exposure, when the shutter is fully depressed, will the Image Stabilization engage.
Helping filmmakers achieve smoother and more appealing focus shifts when filming on EOS DSLR cameras, Canon has included a new Power Focus (PF) mode on the Company’s new super telephoto lenses[i]. This mode allows manual rack focusing to be operated smoothly by turning a playback ring that is normally used for the focus preset function. Both low-speed and high-speed focus shifting are available.
Additionally, a new security slot attachment has been included on both of the new super-telephoto lenses to allow a wire-type security lock to be easily affixed, a great safety feature for professionals shooting from high vantage points above arenas and crowds.
Canon EF 500mm f/4L IS II USM Lens for Sports and Nature Photography
The Canon EF 500mm f/4L IS II USM offers professional photographers a lighter weight option for those situations that require a long focal length with improved image quality and enhanced durability over its predecessor. Great for a wide range of applications, the EF 500mm f/4L IS II USM lens is ideal for professional photojournalism, sports photography and nature and wildlife photography. The optical formula of the new lens has been enhanced to include two fluorite lens elements for improved image quality and reduced chromatic aberration. Helping to reduce photographer fatigue and make the lens more portable, Canon has reduced the overall weight of the lens by 18 percent from 136.5 oz to 112.5 oz. The Image Stabilizer provides an equivalent of approximately four full shutter speed steps of shake compensation and has been enhanced through the incorporation of a rolling-ball-friction system in place of sliding parts in the compensation optics barrel for a minimum-friction structure. The overall durability of the lens has also been enhanced through increased usage of magnesium alloy and titanium for lens barrel components, together with weather sealing for all exterior joints and switches and a new fluorine anti-smear coating applied to the front and rear elements.
The Canon EF 500mm f/4 L IS II USM Lens, mounted-to a Canon EOS 5D Mark III, performed spectacularly in this situation. Here is an example:
Image courtesy: The-digital-picture.com
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