The Sigma 105 sounds on par with the DFA 100 wrt working room. I haven't use the DFA much, it was my backup for the A* 200. Looks like I have the chance to test it some more.
----- Original Message ---- From: steve harley <[email protected]> To: Pentax-Discuss Mail List <[email protected]> Sent: Fri, June 10, 2011 2:42:59 AM Subject: Re: Sigma 150mm macro lens On 2011-06-09 20:28 , Mark Cassino wrote: > The only viable option I see out there now is the Sigma 150mm f2.8 macro. Has > anyone tried this lens? They state that it has a minimum focusing distance of >15 > > inches which is 1:1 magnification. So, minus the length of the lens (5 inches) it looks like there would be about 10 inches of working room. That's not bad - the 200mm macro hit about 12 inches of working room at 1:1. The D-FA 100 only has about 6 inches. fwiw, my Sigma EX 105/2.8 macro (pre DG version) has "working room" of about 4 inches from the lens front (from physical lens front -- the glass is recessed at least an inch); however i often work at less than magnification than 1:1; at 1:2 it's got about 9 inches working room still i like it very much, but i don't have much basis for comparison; it's light enough that i carry it often; my only niggle is that the focus ring turns only about 135 degrees -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
