http://www.nikonchat.com/nikkor-dslr-lens/
Is it any interchangeable SLR lens campatible with any digital SLR camera?
for example, would be an adaptation of the lens Nikkor 50mm on a Canon EOS? are all standard accessories?
No, you can have a camera and lenses from the brand that the camera works and lenses made by the makers of independent brand lenses for the camera work. For example, Nikon lenses work on Nikon cameras and lenses made by Tamron, Sigma, Tokina and work in a service if you are done with the Nikon mount lens. There are some cases of a few brands that share a mount type the camera. Pentax K mount in the past was used by other brands such as Ricoh, Chinon, and Sears. Hope this helps. Marcos
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