2x Magnification, For: Still Photography, Bayonet, Autofocus, 4 Groups / 7 Elements The Kenko 1.4x Teleplus Pro 300 DG converter has genuine Gate Array IC (Integrated Circuitry). That means that the converter's own unique circuitry maintains signal integrity between the digital or photo camera body and lens. These converters are designed to electronically operate the same way as an original manufacturer's converter. more...

1.7x Magnification, For: Still Photography, Bayonet, Autofocus, 4 Groups / 7 Elements The Nikon TC-17E II was designed exclusively for use with AF-S and AF-I lenses, and completes the Nikon lineup of 1.4x, 1.7x, and 2.0x compact teleconverters. This teleconverter will maintain full metering and focusing with compatible cameras and lenses, and will also support the VR function found on many of the newer professional lenses. more...

2x Magnification, Bayonet, 5 Groups / 6 Elements The dedicated APO teleconverters can be mounted between select lenses and the camera body to increase the focal length by the power of 2.0x. The new multi layer coating reduces flare and ghost, which is a common problem with digital cameras. They demonstrate best performance with DG series lenses. They also offer maximum photography magnification by 2.0 x, without any variation in the minimum focusing distance. Compact and lightweight, these teleconverters convert your lenses into longer focal-length lenses, so you don t have to do a lot of unnecessary footwork. Specifications: Lens construction: 6 elements in 5 groups Focal length: 2.0x that of a master lens Dimensions (Diameter x Length): 68.5 x 52 mm / 2.7 x 2.0 in Weight: 235 g / 6.6 oz. more...

1.4x Magnification, For: Still Photography, Bayonet, Autofocus, 3 Groups / 5 Elements The dedicated 1.4x APO Teleconverter features a high performance 5 element/3 group optical design, and it is optimized for use with long telephoto and telezoom lenses.The high performance optical characteristics of these teleconverters maintain the optical performance of the compatible lenses with which they can be used. Sigma APO Tele Converter 1.4x and 2x are dedicated Tele Converter lenses, which should be used only with the listed lenses. The 1.4X Convertor will fit the following lenses 180mm f/3.5 APO MACRO EX HSM - MF 300mm f/2.8 APO EX HSM - AF 300mm f/4.0 APO MACRO - MF 400mm f/5.6 APO MACRO /HSM - MF 500mm f/4.5 APO EX HSM - MF 800mm f/ 5.6 EX HSM - MF 70-200mm f/2.8 EX HSM - AF 70-210mm f/2.8 - MF 50-500mm f/4-6.3 APO - MF 100-300mm f/4 EX HSM - AF 120-300mm f/2.8 EX APO - AF 300-800mm f/5.6 EX APO - MF Will also fit the following Orginal Nikon AF Lenses 300mm f2.8 AF-S - AF 300mm f4.0 ED AF - MF On the lists, the lenses marked AF will retain auto focus operation when used with a Tele Converter. more...

1.4x Magnification, For: Still Photography, Bayonet, Autofocus, 3 Groups / 5 Elements The dedicated 1.4x APO Tele-converter features a high performance 5 element-3 group optical design and it is optimized for use with long telephoto and tele-zoom lenses. The high performance optical characteristics of these tele-converters maintain the optical performance of the compatible lenses with which they can be used. Using 10-pin electrical interfaces there is no loss of auto focusing speed when these tele-converters are used with compatible H.S.M. type lenses for Canon Sigma and now current Nikon AF cameras -except N60-F60 models. They are ideally suited for use with the 70-200mm F2.8 APO EX HSM zoom lens providing normal exposure and auto focus function while maintaining its high optical performance. more...

1.4x Magnification, For: Still Photography, Bayonet, Autofocus, 3 Groups / 5 Elements The Sigma 1.4x DG EX APO Tele Converter for Canon (also known as a tele-extender) will multiply the focal length of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300 mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4. more...

2x Magnification, For: Still Photography, Bayonet, 6 Groups / 7 Elements The Nikon TC-20E III 2x Teleconverter is an exceptional teleconverter optimized for use with FX and DX digital SLR cameras. It doubles the focal length of compatible Nikkor lenses. The TC-20E III is constructed of 7 elements in 5 groups and with Nikons Integrated Coating (IC) you will see improved color and reduced flair. It has one aspherical lens element which virtually eliminates lens aberrations. The 2x extender (also known as a teleconverter) will double the focal length of your existing lens, and will cut back the amount of light by 2 f/stops. For example, using this teleconverter with a 300mm lens will effectively increase the focal length to 600mm. more...

2x Magnification The EF 2.0x III serves as the perfect accessory to Canon EF Lenses allowing you to get even closer to the action capturing that perfect shot. The Extender EF 2x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 2x. The extender's design ensures there is no loss of lens performance or image quality. more...

Autofocus Upgraded standard zoom lens for FX-format D-SLRs offers a constant maximum aperture to maintain exposure settings throughout the entire zoom range. more...

2x Magnification, Bayonet, Autofocus, 5 Groups / 7 Elements Doubles the focal distance* of any ZUIKO DIGITAL lens something that is particularly impressive in telephoto shooting. When combined with a fisheye or macro lens, exciting new photographic techniques such as wide macro shooting and high-magnification shooting are also possible. more...

Bayonet, Autofocus AF-S Teleconverter doubles the effective focal length of select compatible NIKKOR lenses, offering an affordable and portable gateway to extend telephoto reach; ideal for sports shooting, wildlife, surveillance and more. more...

0.6x Magnification Widen your horizons or look beyond them with the Lensbaby Wide Angle / Telephoto Kit. The 0.6X wide angle lens and 1.6X telephoto lens allow you to change your Lensbaby’s effective focal length to either 30mm or 80mm. more...

0.75x Magnification Sony VCL-HGA07B Keep your subjects in frame and capture more of the scene with your HDR-TG5V Handycam camcorder and the VCL-HGA07B full range conversion lens. Ideal for shooting weddings, landscapes and group shots, this wide-angle lens with 0.75x magnification gives you a 30% wider field of view. A 30mm adaptor ring, adaptor ring wrench, and carrying pouch are also included. more...