Ricoh files a patent for a 200mm f/2.8 full frame lens (for Pentax K-1)


Ricoh has a new patent application filed in Japan for a 200mm f/2.8 ED IF DC full frame lens (most likely designed for the Pentax K-1):

Sigma also recently filed a patent for a 200mm f/2 DG OS HSM lens.

Via Egami

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