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Hi Paul,
Interested in the Tasman 135mm - do you know if this will fit to the latest Pentax digitals (K50 in my case). I believe some K mount lenses have something called a Ricoh pin that may not be compatible. My old Pentax SMC 50mm works fine with my K50 but my old Sigma 28mm Kmount does not fit.
Also, what's the quality like at f2.8?
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