the Canon EF 1.4x III lens This model consists of the third revision of a teleconverter lens, which is compatible with Canon EF series cameras that work in FF (FullFrame) and APS-C formats; it uses 7 lenses divided into three optical groups, has a weight of 222 grams and measures exactly 72 x 27mm. The lightness of the Canon EF 1.4x III lens is undoubtedly one of the best qualities of this component and is combined with good autofocus speed; the construction is decidedly excellent, as is the optical performance, furthermore the device allows you to correct the aberrations of the lens (with DPP). The use of special gaskets near the joints allows you to count on good resistance to both water and dust. Compared to the previous model, this multiplier offers a marked improvement in terms of interfacing with the camera. The photos taken with the aid of this lens present remarkable sharpness and are characterized by exceptional, realistic and precise detail; the colors are very natural and enhance the details, giving the images a pleasant emotionality. For these reasons the product is ideal for photographing naturalistic scenes and producing useful images in the journalistic field. Ideal for: the Canon EF 1.4x III lens was created mainly for professional needs but winks at photography enthusiasts, who are looking for a valid and accessible product; the product is therefore a good purchase even for amateurs, both for ease of use and for the quality-price ratio.