well as the first appearance of a 45-point system in a non-professional body. This system was brought downmarket in 2017 with its inclusion in the upper-entry-level EOS 77D and mid-entry-level EOS 800D/Rebel T7i. For the earlier generation of 45-point AF system, the central column of 1 or 2 sensors (7 in all up to EOS-1Ds Mk II, EOS-1D Mk II N) are cross-type sensors, which are sensitive to both vertical and horizontal lines to offer a high degree of accuracy. The EOS-1Ds Mk III, replaced by the EOS-1D X, has 19 cross-type sensors for higher accuracy, as well as placing the cross-type sensors to complement the Rule of Thirds. The other Canon professional SLR replaced by the EOS-1D X, the APS-H EOS-1D Mk IV, has 39 cross-type sensors, a major increase from the 19 of the Mk III. Of the 61 AF points of the EOS-1D X and 5D MkIII, 21 central points and 20 outer points are cross-type, and five central points are dual-cross-type (sensitive to diagonal lines in addition to horizontal and vertical). All 65 points of the 7D MkII are cross-type, but only the center point is dual-cross-type. Similarly, , all AF points on later generations of the X0D series (beginning with the 40D and continuing through the current 80D) are cross-type sensors for higher accuracy, and the center sensor is dual-cross-type for even greater accuracy and sensitivity. In June 2012, the EOS 650D (Rebel T4i) became the first consumer-level Canon to receive this AF system. Naming scheme of EOS DSLR and SLR cameras Identical Canon models are sometimes marketed under different names in different parts of the world. For example, the EOS Rebel 2000 known in the Americas is also known as EOS Kiss III in Japan, and EOS 300 in other parts of the world. Naming scheme of EOS M Series MILC cameras Naming scheme of EOS R Series MILC cameras Film cameras This is a list of the 35 mm Film and APS Canon EOS models in order of introduction: Digital cameras Prior to the introduction of the EOS D30 digital SLR, Kodak produced four digital SLRs also sold under the Canon brand. These cameras used a digital camera back with the image sensor and associated electronics designed and built by Kodak together with modified internals of the EOS-1N film SLR. Due to using the Canon EOS body, these four digital SLRs can accept