Sigma 300mm f2.8

[helged]

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Sigma continues with interesting long-reach lenses, extending the 200mm f2 and 300-600mm f4 twins with, apparently, 300mm f2.8. Interesting, particularly if it accepts extenders (in contrast to 200mm f2):

https://www.l-rumors.com/new-sigma-patent-discloses-the-design-of-the-300mm-f-2-8-os/

Edited 16 hours ago by helged