This is 28mm f/2.8 Mini-Wide-II, in Konica mount. Close focus to 22cm, 1:4.5 "macro".
<table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/It6bAHdCrTFD9mpI5uRIulOuTUrMyCSdhEoqG6c3pqk?feat=embedwebsite">
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"427" width="640" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/106236012710735055679/20120928CGSigma?authuser=0&feat=embedwebsite">2012-09-28 CG Sigma</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/SI-SVyy3oCFNjXIW1J5ShVOuTUrMyCSdhEoqG6c3pqk?feat=embedwebsite">
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"640" width="427" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/106236012710735055679/20120928CGSigma?authuser=0&feat=embedwebsite">2012-09-28 CG Sigma</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/8bgYdB1xPWCry-I4LZkAUFOuTUrMyCSdhEoqG6c3pqk?feat=embedwebsite">
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"427" width="640" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/106236012710735055679/20120928CGSigma?authuser=0&feat=embedwebsite">2012-09-28 CG Sigma</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/hKUhrWP5yZ6crJVLhP-r-FOuTUrMyCSdhEoqG6c3pqk?feat=embedwebsite">
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"427" width="640" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/106236012710735055679/20120928CGSigma?authuser=0&feat=embedwebsite">2012-09-28 CG Sigma</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/sMl4A6BzaXEZxRAqa1oOJ1OuTUrMyCSdhEoqG6c3pqk?feat=embedwebsite">
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"640" width="427" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/106236012710735055679/20120928CGSigma?authuser=0&feat=embedwebsite">2012-09-28 CG Sigma</a></td></tr></table>