The Sigma 2x TC-2001 is an enlarger that guarantees fast and safe performance, thanks to a very solid structure. This teleconverter is decidedly simple to use and for this reason it occupies a special place in the preferences of photographers who need a . Although it was introduced about twenty years ago, the Sigma 2x TC-2001 still represents a fairly valid model, which has remained one of the best over the years for those who need to magnify their lenses. The exterior structure is designed to protect from the action of dust and water, effectively allowing the transport of the product even during professional outdoor shooting. The optical glass lenses are of SLD standard, an acronym that means Special Low Dispersion and which indicates a special conformation which allows you to obtain images that are always precise and with a very clean touch. As far as compatibility is concerned, however, there is a slightly sore point: it is necessary to pay particular attention, checking the model you have in use at a given moment. In fact, this is essential to avoid purchasing a product that you risk not being able to use. Generally speaking, this Sigma brand is mounted on the TC series. It will be sufficient to read the specifications carefully. Ideal for: the Sigma 2x TC-2001 is a device that adapts correctly to the needs of the most expert photographers, to whom it will be able to give sharp photos thanks to superior optics.