Being one of Canon's longest and heaviest lenses, the Canon EF 600mm f/4.0 L IS USM Lens is also a bit of the steep side when it comes to its price. However, there’s much to like and appreciate about the lens.

The Canon EF 2x II Extender is the easy and cost-effective solution for those looking for a way to extend the focal length of their current Canon L Series lenses. The Canon EF 2x II Extender can multiply the focal length setting of your current lens by two.

Getting the Canon EF 1.4x II Extender is the most affordable solution if you want to increase the focal length range of your current Canon L Series lenses. The extender mounts between the body and the lens – as it provides a 1.4 multiplication of the focal length settings of your lens.

The Canon EF 400mm f/5.6L USM Lens is dubbed as a super telephoto lens by Canon. As the name suggests, the lens has a super build quality and it can produce superior image quality. While it is well built, the lens is still relatively light. The lens measures 3.5” x 10.1” and weighs 44.1 oz. The lens is quite long and narrow. But most importantly, the Canon EF 400mm F/5.6L USM Lens can deliver exceptional mechanical and optical performance.

Canon has classified the Canon EF 500mm f/4.0 L IS USM Lens as one its Super Telephoto Lenses. And in many wonderful ways, it does deserve its name. The lens has one of the longest focal lengths available. It offers superior image quality, as well as a level of sharpness that you never thought possible. While it is rather steeply priced, the overall quality should more than make up for it.

The Canon EF 300mm f/2.8L IS USM lens is a high-performance super-telephoto lens that will be perfect for sport photographers, as well as other long-distance photography. The lens can produce absolutely stunning and exceptional image quality. No wonder some have called the Canon EF 300mm f/2.8L IS USM Lens the best Canon EF lens ever made due to its superior image quality.

The Canon EF 800mm f/5.6L IS USM lens is among Canon’s top of the line lenses, as indicated by the slightly steep price. It is also the longest telephoto lens that Canon has ever produced, which makes it suitable for long-distance and outdoor photography.

The ultra-high performance Canon EF 400mm f/2.8L IS II USM Lens is the 5th generation of Canon’s 400mm f/2.8 models. As a super-telephoto lens, it features a 4-stop Image Stabilizer with 3 modes to produce exceptional image quality in a durable design using titanium and magnesium alloy to keep the weight down.

The Canon Extender EF 1.4x III is the ideal choice for sports, nature and even press photography. This light and small extender can increase the focal length of your Canon L-series telephoto zoom lens by 1.4x without losing image quality. The extender also allows for a higher AF accuracy.

The Canon Extender EF 2X III is specifically designed for Canon’s L-series new range of super telephoto-lenses. It is most suitable for photojournalists, sports and nature photographers who seek to get closer to their often challenging subjects. The extender can increase the focal length of the lens by a factor of 2x, while still producing excellent image quality.