On Feb 25, 2011, at 1:01 PM, steve harley wrote: > On 2011-02-25 05:02 , Paul Stenquist wrote: >> There are alternatives that are somewhat easier to use but more difficult to >> construct, such as a method where the target is a slope that rises at 45 >> degrees and the camera is level. > > easy to construct: i've used a yardstick leaned against a wall, though only > to check lenses, since my k200d doesn't have a focus correction feature > > i guess a yardstick on the ground would be a little easier as i could raise > the tripod to a comfortable height >
Or perhaps a yardstick on a table leaned against a wall. But unless your yardstick has sharp, well defined markings, it might not work that well. My target is printed on good photo paper with fine lines at high resolution. That makes it easy to see which line is most in focus. With wide angles, it can be a close call. Paul > -- > 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.
