Pentax Corporation




The company was founded in 1919 by Kumao Kajiwara. In 1938 the name changed to Asahi Optical Co., Ltd., manufacturing camera and cine lenses. Since 1957, the products were distributed under the name "Asahi Pentax" and finally the company was renamed Pentax Corporation in 2002. 



In 2011, Ricoh bought and renamed the company to Pentax Ricoh Imaging Company, Ltd and on August 1, 2013, the company name was again changed to Ricoh Imaging Company Ltd.


Takumar Prime Lenses

 Super-Takumar 1:1.8 / 55 Asahi Opt. Co.

Pentax-M Prime Lenses

 SMC Pentax-M 1:4 20mm Asahi Opt. Co. SMC Pentax-M 1:3.5 28mm SMC Pentax-M F2.8 40mm SMC Pentax-M 1:1.7 50mm

Pentax-A Prime Lenses

SMC Pentax-A 1:1.7 50mm

 Pentax-A Zoom Lenses

 Pentax-A Zoom 1:3.5-4.5 28-80mm SMC Pentax-A F4 35-70mm Pentax-A Zoom 1:4 70-200mm SMC Pentax-A Zoom 1:4 70-210mm

Pentax AF Lenses

 SMC Pentax AF Zoom 1:2.8 35-70mm

 Pentax-F Zoom Lenses

SMC Pentax-F Zoom 1:3.5-4.5 35-70mm SMC Pentax-F F4-5.6 35-80mm

Pentax-FA Zoom Lenses

SMC Pentax-FA 1:3.5-5.6 28-80mm SMC Pentax-FA 80-200mm 1:4.7-5.6

Pentax DA* Lenses

SMC PENTAX -DA* 1:2.8 16-50mm ED AL [IF] SDM

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