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Ricoh filed two new patents for APS-C DSLR lenses:
Pentax 15-45mm f/2.8 APS-C DSLR lens patent
Focal length: 15.5~26.0~43.7 mm
F number: 2.9~2.9~2.9
Half angle of view: 44.3~28.4~17.6
Image height: 14.24 mm
Back focus: 35.592~50.304~67.802 mm
Pentax 18-105mm f/2.8 APS-C DSLR lens patent
Focal length: 18.5~43.5~101.9 mm
F number: 2.9~2.9~2.9
Half angle of view: 39.0~17.8~7.7
Image height: 14.24 mm
Back focus: 30.120~47.793~66.140 mm
Via hi-lows-note
The post Ricoh filed two new patents for Pentax APS-C DSLR lenses appeared first on Pentax Rumors.
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