Spark is a perfect entry point into the Lensbaby system for young photo enthusiasts, photography students or newer photographers who want a fun way to break out of traditional photography. It's a fun and affordable way to capture selective focus images with a DSLR.

The olloclip Telephoto + Circular Polarizing Lens is a quick-connect lens solution for the iPhone and iPod touch that fits in the palm of your hand. This lens was designed for anyone who takes photos with an iPhone or iPod touch. Need to get closer to the action?

Placed between the camera body and lens, a teleconverter contains a set of optics that will effectively increase the focal length of any lens with which it is used. The KENKO TelePlus MC7 AF 2.0X DGX converter has the effect of multiplying the focal length of your lens by 2.0x, turning a 300mm lens into an equivalent 600mm lens.

KENKO Teleplus Pro 300 DGX converters are made with precision quality multi-coated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. These glass elements were designed to match the optical quality of the prime lens (even at the edges) and telephoto zoom lenses. The optical design of the elements and light path is wide enough not to cause vignetting.

KENKO Teleplus Pro 300 DGX converters are made with precision quality multi-coated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. These glass elements were designed to match the optical quality of the prime lens (even at the edges) and telephoto zoom lenses. The optical design of the elements and light path is wide enough not to cause vignetting.

Teleconverters, either 1.4X or 2X, are efficient tools to add focal length to the photographer's arsenal. However, universal-type teleconverters have certain limitations in performance when used with ultra-telephoto lenses of 200mm or longer as compensation of chromatic aberration alone becomes highly critical in this focal length range.

PROMASTER's 1.4x Digital Auto Focus Teleconverter uses anti-reflection coatings that are specifically formulated to pass light reflected from the anti-aliasing filter and silicon based CCD or CMOS sensor of digital SLRs resulting in better pictures.

PROMASTER's 1.4x Digital Auto Focus Teleconverter uses anti-reflection coatings that are specifically formulated to pass light reflected from the anti-aliasing filter and silicon based CCD or CMOS sensor of digital SLRs resulting in better pictures.

Triples the focal length of Nikon Coolpix series digital cameras. High quality ED glass allows for ultra-sharp images.

Today's digital SLRs have more precise requirements than traditional film cameras. The anti-aliasing filter and silicon based CCD and CMOS sensors in digital SLRs are HIGHLY reflective. PROMASTER's 2x Digital Auto Focus Teleconverter uses anti-reflection coatings that are specifically formulated to pass light reflected from the anti-aliasing filter and silicon based CCD or CMOS sensor of digital SLRs resulting in better pictures.

High Definition Compatible 0.7x Wide Angle Converter allows you to get closer to the subject and get more in the shot. Screws into the front of the camcorders zoom lens. Designed for 43mm lens diameter.

Equipped with 1 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 1.4x the reach, get the most out of your Sigma lens.

Equipped with 1 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 1.4x the reach, get the most out of your Sigma lens.

The TCL-X100 II is a dedicated tele-conversion lens for narrowing the field of view by multiplying the fixed focal length by approx. 1.4x, converting it to 50mm (35mm format equivalent). This lens can be used in a variety of situations, such as portraits taking advantage of a natural perspective, or close-up photography from as close as 14cm. When the TCL-X100 II is mounted on the X100F, the camera automatically recognizes the conversion lens and corrects aberrations.

The TCL-X100 II is a dedicated tele-conversion lens for narrowing the field of view by multiplying the fixed focal length by approx. 1.4x, converting it to 50mm (35mm format equivalent). This lens can be used in a variety of situations, such as portraits taking advantage of a natural perspective, or close-up photography from as close as 14cm. When the TCL-X100 II is mounted on the X100F, the camera automatically recognizes the conversion lens and corrects aberrations.

Ideal for getting extra close to your subjects beyond your lens's capability. The MC-14's splashproof, dustproof and freezeproof all metal construction is compatible with the M.Zuiko ED 40-150mm f2.8 PRO and will also be compatible with the M.Zuiko ED 300mm f4.0 PRO (Available in 2015).

Equipped with 2 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 2x the reach, get the most out of your Sigma lens.

Equipped with 2 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 2x the reach, get the most out of your Sigma lens.

Remarkable optical performance enabled by the latest design to provide a high shooting ratio while upholding the high performance of the original lens

The TC-17E II (1.7x) AF-S, AF-I Teleconverter is designed exclusively for use with AF-S and AF-I lenses, the AF-S Teleconverter TC-17E II completes the Nikon lineup of 1.4x, 1.7x, and 2.0x compact teleconverters. The teleconverter adds photographic versatility without the expense or weight of an extra lens.

The TC-X14 1.4x Teleconverter makes it easy to expand the versatility of the attached lens. The Tele converter 1.4x increases the focal length by a factor of 1.4x.

The TC-X14 1.4x Teleconverter makes it easy to expand the versatility of the attached lens. The Tele converter 1.4x increases the focal length by a factor of 1.4x.

Remarkable optical performance enabled by the latest design to provide a high shooting ratio while upholding the high performance of the original lens.

Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses.

Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender, features careful lens placement and coatings to minimize ghosting, flare and chromatic aberration, and even has a new Fluorine coating that keeps soiling, smears, fingerprints to a minimum.

Double the focal length of the M.Zuiko Digital ED 40-150mm F2.8 PRO or M.Zuiko Digital ED 300mm F4.0 IS PRO with the 2x teleconverter MC-20. Maintain outstanding image quality, High speed AF, and Image Stabilization performance while carrying a minimal amount of additional gear.

The TC-X20 2.0x Teleconverter makes it easy to expand the versatility of the attached lens. The Tele converter 2.0x increases the focal length by a factor of 2.0x.

The TC-X20 2.0x Teleconverter makes it easy to expand the versatility of the attached lens. The Tele converter 2.0x increases the focal length by a factor of 2.0x.

The Fujinon Teleconverter XF1.4X TC WR" is a high-performance teleconverter capable of multiplying the focal length of mounted lenses* by 1.4x. Although the aperture becomes one f-stop higher when mounted, the teleconverter features an excellent optical design with a construction of 7 elements in 3 groups to maintain the optical performance of the original lens.

The FUJINON TELECONVERTER XF2X TC WR is a high-performance teleconverter capable of multiplying the focal length of mounted lenses* by two. It features excellent optical design with a construction of 9 elements in 5 groups to maintain the optical performance of the original lens. Also, thanks to the unified design when mounted to a compatible lens, the teleconverter is weather and dust-resistant and operates at temperatures as low as -10°C. This makes it possible to be used with confidence outdoors . . . .