Yep, I have a Sigma lens with a problematic chip, it can't focus correctly beyond f5, before f5 focus is perfect.
On 9 November 2012 21:53, Krisjanis Linkevics <krisjanis.linkev...@exigenservices.com> wrote: >> > USB port that according to promo on dpreview.com will allow not just >> > changing lens firmware but also things such as micro focus >> adjustment. > > What's the point of focus adjustment on the lens anyway? Unless it is for > fine-tuning the distance scale on the lens itself, I would think it doesn't > do anything. Focus is determined by the camera body, not the lens. Am I > missing something here? > > kris > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Rob Studdert (Digital Image Studio) Tel: +61-418-166-870 UTC +10 Hours Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.