The canon RF 100-500mm f/4.5-7.1 L is usm is produced by the Japanese house since 2020 and is currently in production. The lens is a super telephoto lens by the high performance and for this reason it is of a professional mold, this is also indicated by the nomenclature L which means the series of higher quality products, both constructive and performance. The device is designed to be mounted both on APS-C and Full Frame provided they are equipped with RF attack or with an adapter. The automatic focus is present at function with dual nano USM engine which is extremely silent and fast, able to focus on a rapid movement in a fraction of a really negligible second. Precisely for reasons like this, the Canon RF 100-500mm f/4.5-7.1 L IS Usm is highly appreciated by all sporting and fauna photographers , or those who need additional safety in search of the ideal shot To immortalize the right time. The support is stabilized, it is also equipped with tripod ring , indispensable for long -lasting stalking in order to avoid holding all the equipment that can weigh several kilos in hand. The size and weight of the lens are in line with the focal length and do not represent an impediment to carry out the work, however those who are not used to handling the lenses of this caliber could be affected in long jobs and it is here that the ring comes into play For trigger. The control ring on the lens allows you to have some camera controls such as ISO, diaphragm and trigger times at hand, in this way an additional professional comfort is obtained. The series L Canon is known for its technical improvements but not only, the treatments to which the lenses are subjected make them particularly resistant and durable, such as those for resistance to external agents such as dust and Water, or the thermo -insulating coating that allows you to use the lens even in adverse conditions. The stabilization of 5 -stop image, which become 6 thanks to the stabilizer integrated in the machine body, allows very firm shots in ease. This landing has a high enough cost cost, for this reason buy the canon RF 100-500mm f/4.5-7.1 L IS Used can represent an excellent compromise, as it would be obtained with a Remarkable savings without sacrificing the quality of the LE series. The support represents the final step towards an exclusively professional and absolute importance equipment, capable of giving dream shots, without practically any visible defect.