Can the Canon SLR camera lens be generic?
3, EF-M bayonet lens: the most versatile, specifically for the non-reflective plate interchangeable lens digital camera design (commonly known as micro single), launched in 2012, can only be used for EOS-M series camera
2, EF-S bayonet lens: slightly less versatile, specifically for the APS-C format (some called half or slapped) digital SLR design, launched in 2003, can only be used for APS-C format digital camera , Can not be used for full-size camera
If you do not consider the FD before the bayonet, Canon now mainstream lens a total of three kinds of bayonet:
1, EF bayonet lens: the best versatility, can be used for all current models of Canon mainstream SLR camera. And now the vast majority of Canon lenses are used EF bayonet
The adaptability of the above three kinds of bayonets can be summarized as follows:
1, EF bayonet camera, the lens for the versatility is relatively poor, can only use the EF mount lens, but the vast majority of the current lens, especially high-end lenses are EF bayonet. This type of camera is mostly full-frame camera, representative models have 1Ds series, 1DX, 5D series, 6D; Secondly, 1D series is not the full size (APS-H format), but also must use EF lens; again, Canon early APS-C frame models (before 2003), because EF-S bayonet has not yet come out, can only use EF lens, on behalf of models D30, D60, 10D
2, EF-S bayonet camera, the lens is very versatile, in addition to all the EF lens can be used, you can also use all the EF-S bayonet lens, but no matter what kind of lens, the actual focal length are Equivalent to 1.6 times the focal length of the lens. This type of camera are APS-C format camera after 2003, on behalf of models are: 7D, 70D, 700D, 1100D and so the vast majority of Canon in the sale of entry-level camera
3, EF-M bayonet camera, in a sense for the lens of the versatility is the strongest, in addition to matching the EF-M lens can be used, you can also install the adapter ring, the use of all EF and EF-S lens, focal length conversion factor is also 1.6. At present, only Canon's no use of the camera (in fact, that is micro-single, just because the name of the micro-single registered by Sony, and other countries can not be used), on behalf of models: EOS-M and EOS-M2
