The Canon EF-S 18-200mm f/3.5-5.6 IS Lens is a compact and lightweight wide zoom range lens that is specifically designed for the range of EOS digital SLR cameras that use the smaller EF-S lens mount. Combining powerful performance with high image quality, this lens offers the equivalent of 29-320mm in 35mm format. It is ideal for use as a general-purpose zoom lens, providing coverage from a wide angle to a telephoto perspective.

This 28mm lens has a fast f/1.8 maximum aperture, with macro-focusing capability. It features minimum focusing, down to 7.9" with a reproduction ratio of 1:2.9). The 9-bladed aperture diaphragm obtains beautiful out of focus images. It incorporates the floating focus system and the use of two aspherical lens elements to minimize distortion, spherical aberration and astigmatism.

Canon 1.4x EF Extender IIIThe Canon 1.4x EF Extender III is designed for Canon L-series telephoto lenses. The extender is perfect for photojournalists, nature and sports photographers who need to get close to distant and challenging subjects. The 1.4x EF Extender III increases the focal length of a lens by a factor of 1.4x while still delivering superb image quality. To ensure the best possible image quality in all shooting conditions, it also combines enhanced environmental protection, redesigned optics and improved data communication between lens and camera. The extender allows professional photographers to shoot distant subjects without having to carry a number of heavy lenses. The 1.4x EF Extender III features three groups of seven elements, ensuring improved optical performance. All optical elements use Canon's Super Spectra coating, reducing ghosting and flare to minimize post-processing requirements. A new Fluorine Coating on the front and rear elements makes marks, such as spots left by water or fingerprints, much easier to clean than standard coatings. To facilitate the accurate transfer of imaging data between the lens and camera body, the extender features an integrated processor which ensures all focusing, metering and ID information is available - allowing the photographer to capture crisp, well-exposed images. When combined with the latest range of premium Canon L-series lenses, these extenders enable higher AF accuracy, ensuring perfectly sharp shots, even when capturing moving subjects. A carefully positioned lens release mechanism also makes it easy to mount the extenders quickly, reducing the time that the camera and lens are exposed to the environment. The extenders offer the exceptional build-quality expected from Canon's professional products, and are resistant to both dust and water, allowing photographers to use them in extreme shooting conditions. (Teleconverter)

Despite the large maximum aperture, the lens remains compact. Lens group 5 moves for rear focusing, and sharp, crisp pictures are obtained at all apertures. The background blur is ideal for portraits. The USM autofocuses the lens quickly and quietly.

The Sigma 17-70mm F2.8-4 DC Macro OS HSM Lens is a large-aperture lens with a maximum f/stop of f/2.8 in wide angle setting. The large zoom range of this 4x zoom lens (equivalent range of approx. 27-112mm when used with a Canon digital SLR camera) makes it ideal as an everyday large-aperture lens. In addition, the minimum focus distance of 8.7" along with the maximum magnification of 1:2.7 also makes the lens perfect for close-up photography.

The Sigma 17-70mm F2.8-4 DC Macro OS HSM Lens is a large-aperture lens with a maximum f/stop of f/2.8 in wide angle setting. The large zoom range of this 4x zoom lens (equivalent range of approx. 27-112mm when used with a Canon digital SLR camera) makes it ideal as an everyday large-aperture lens. In addition, the minimum focus distance of 8.7" along with the maximum magnification of 1:2.7 also makes the lens perfect for close-up photography.

The Sigma 17-70mm f/2.8-4 DC Macro OS HSM Lens for Canon is a standard zoom lens designed especially for DSLRs with APS-C-sized image sensors. This lens has a 35mm-equivalent focal length range of 27.2-112mm, providing wide-angle to portrait-length angles of view for use in everyday shooting situations.

The Sigma 10-20mm f/4-5.6 EX DC HSM lens offers an ultra-wide zoom solution to digital cameras, and was exclusively designed to suit the characteristics of digital SLR cameras. The super wide-angle capability of this zoom lens (equivalent range of approx. 16-32mm when used with a Canon digital SLR camera (*) makes it a very powerful tool for both indoor and landscape photography.

An extended range Zoom Lens with Hybrid Optical Stabilization and Hyper-Sonic Motor, Sigmas innovation is in the 18-250mm F3.5-6.3 DC OS HSM 13.8:1 extended range zoom lens. The DC lens is a dedicated digital SLR camera lens suited for APS-C format, and HSM (Hypersonic Motor) ensures quiet and high speed AF as well as full time manual focusing capability. Four Special Low Dispersion glass elements and three Aspherical lens elements provide excellent image quality throughout the entire zoom range.

The Sigma 105mm f/2.8 EX DG macro lens delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to lifesize (1:1) macro, as close as 12.2" without accessories. Its non-rotating front lens group makes it easier to work with polarizing filters. A focus limiter helps divide the broad focus range into more manageable chunks.

Zoom Super Wide Angle

The Tamron SP AF10-24mm f/3.5 -4.5 Di II is an ultra wide-angle zoom lens. Di II means that is designed for exclusive use on digital SLR cameras with smaller-size imagers (APS-C/DX). Boasting a focal length range of 10 - 24mm, (the 35mm equivalent of 16mm to 37mm) this lens has a varied range of applications for creating dramatic images as it features both ultra-wide and semi-wide angle settings.

The Tamron SP AF10-24mm f/3.5 -4.5 Di II is an ultra wide-angle zoom lens. Di II means that is designed for exclusive use on digital SLR cameras with smaller-size imagers (APS-C/DX). Boasting a focal length range of 10 - 24mm, (the 35mm equivalent of 16mm to 37mm) this lens has a varied range of applications for creating dramatic images as it features both ultra-wide and semi-wide angle settings.

The Tokina 100mm f/2.8 - AT-X M100 PRO D is a macro lens capable of life-sized (1:1) reproduction at 11.8" (30 cm). The lens' multi-coating has been re-engineered to match the highly reflective silicon based CCD and CMOS sensors in today's digital SLR cameras. This lens gives the best of both worlds because optics still give full coverage and excellent sharpness on 35mm film. A macro lens that can handle both the digital and film worlds with ease.

The Sigma 50mm f/1.4 EX DG HSM Autofocus Lens is a standard lens that provides a large maximum aperture of f/1.4. It is the ideal prime lens for use with all Canon digital or film SLR cameras. When used on Canon digital SLR cameras with the APS-C size sensor, the equivalent focal length of this lens will be 80mm, which makes it an excellent choice as a bright medium telephoto lens.

The Sigma Macro 70mm f/2.8 EX DG Lens is a medium telephoto macro lens which is ideal for both digital and 35mm film SLR cameras. The 70mm focal length gives an equivalent field of view to the popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor. The design of this lens makes it suitable for taking pictures in all situations, from infinity to 1:1 macro, both with natural light conditions or flash.

The Sigma 18-200mm f/3.5-6.3 II DC OS HSM Lens for Canon Digital EOS offers an "all-in-one" super-zoom lens solution, from wide-angle to long telephoto. It provides the equivalent focal range of approx. 29-320mm when used with a Canon digital SLR camera*. This lens has the OS (Optical Stabilizer) system, which minimizes image blur caused by camera shake, and offers the equivalent of shooting at a shutter speed 2-3 stops faster. This allows handheld telephoto zoom shooting even in poorly lit conditions. It also includes a Hyper Sonic Motor (HSM) for quiet, high-speed autofocus.    

Easy to hold and carry and featuring a floating rear focusing system, this ultra-wide-angle lens is designed for serious applications. Sharp images are obtained at all subject distance.

This 24mm lens has a fast f/1.8 maximum aperture with macro focusing capability (minimum focusing distance is 7.1" for a reproduction ratio of 1:2.7). The 9-bladed aperture diaphragm obtains beautiful, circular out of focus characteristics. It incorporates a floating focus system and uses two aspherical elements for minimized distortion, spherical aberration and astigmatism.

If you have a Canon camera with a smaller-size APS-C sensor and EF mount, then the 18-250mm F3.5-6.3 DC Macro OS HSM from Sigma is an incredibly versatile lens that is a real jack-of-all-trades lens you can carry in any situation. With a focal length spanning from a wide-angle 18mm up to a 250 mm telephoto zoom, with macro capabilities to boot, Sigma's 18-250mm could easily be your camera's first all-in-one lens, or a great replacement for several smaller lenses that you're looking to consolidate.