Ricoh XR Rikenon 50mm f/1.7 - Sample Images
Info and Reviews:
Introduced: 1977 - 1985
Optical design: 6 elements in 5 groups
Lens mount: Pentax K
Covers: Full-frame (24×36mm)
More info:
http://aflenses.net/ricoh-xr-rikenon-50mm-f17-1977/
Review:
http://www.pentaxforums.com/userreviews/ricoh-50mm-f1-7-xr-rikenon.html
Image Origin
ISO: 250
Camera: Sony ILCE-7RM2
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ISO: 200
Camera: Sony ILCE-7RM2
Image Origin
ISO: 100
Camera: Pentax K-50
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ISO: 200
Camera: Pentax K-50
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ISO: 100
Camera: Sony ILCE-7
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ISO: 125
Camera: Sony ILCE-7RM2
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ISO: 100
Camera: Sony ILCE-7
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ISO: 200
Camera: Sony NEX-5
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Aperture: f/1.7
ISO: 200
Camera: Sony NEX-5
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Aperture: f/2.8
ISO: 200
Camera: Sony NEX-5
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Aperture: f/5.6
ISO: 200
Camera: Sony NEX-5
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ISO: 200
Camera: Sony NEX-5
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ISO: 400
Camera: Samsung GX10
Image Origin
ISO: 400
Camera: Pentax K-50
Image Origin
ISO: 100
Camera: Sony ILCE-7
Image Origin
ISO: 400
Camera: Sony ILCE-7RM2
Image Origin
ISO: 400
Camera: Pentax K-50
Image Origin
ISO: 100
Camera: Sony ILCE-7
Image Origin
ISO: 100
Camera: Sony ILCE-7
Image Origin
ISO: 200
Camera: Sony NEX-5