Compatible with the Sony 70-200 mm lens, the Sony FE 1.4x Teleconverter enables you to extend your shooting range by up to 1.4x while maintaining a full G Master performance. It comes with an aspherical lens element that offers an impressive optical performance every time. This teleconverter is engineered with immense precision so that it remains dust- and moisture-resistant.
This is the magnifying factor of a lens. Macro lenses will often be described by their “magnification factor”. A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject.
The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs.