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I found an offer for SMC Pentax M 1.7+2 lens 80-200, both 1:4.5, one Revuenon Multi Coating and one Makinon MC+Canon UV filter. $40 BUT : r/AnalogCommunity
Does anyone know about this lens?: Pentax SLR Talk Forum: Digital Photography Review
SMC Pentax-M 20mm F4.0 | Check if I am selling one of these … | Flickr