All manufacturers use a wide variety of acronyms to show the different models and features of their lenses.  As you realise this can create a large amount of ‘alphabet soup’ in the names of lenses. Here are some explanations of the acronyms.

Nikon or Nikkor Lenses

Canon Lenses – added 19 December 2008

Third Party Lenses – Tamron/Tokina/Sigma – updated 2 October 2011