No personal experience, but here are some threads of people discussing the same thing you are wondering about: http://goo.gl/axzt2U
Similar posts on dpreview (not limited to Pentax) http://goo.gl/e53MNX And another photography forum: http://goo.gl/Ij3gQk A list of the Sigma Service Centers, by state: http://www.service-center-locator.com/sigma/sigma-service-center.htm Hope that is of some help. On Mon, Nov 24, 2014 at 12:35 PM, Matthew Hunt <[email protected]> wrote: > My Sigma 10-20mm f/4-5.6 is softer at the top of the frame than the > bottom, even when stopped down to small apertures, so I would like to > have it checked out while still under warranty. It looks like there > are four Sigma service centers in the USA: > > Sigma Corporation of America, Ronkonkoma, NY > C.R.I.S., Chandler, AZ > Camera Repair Japan, Duluth, GA > Bigston Corporation, Elk Grove Village, IL > > Does anyone have experience with these shops, that might steer me > toward or away from any of them? I know C.R.I.S. was until recently > the Pentax warranty repair center, and it seemed like I generally > heard good things about them. > > -- > 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. -- Life is too short to put up with bad bokeh. -- 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.
