telephoto lenses are physically shorter than their focal length, that may be the difference in you measurements.
-- J.C. O'Connell (mailto:[email protected]) Join the CD PLAYER & DISC Discussions : http://tech.groups.yahoo.com/group/cdplayers/ http://launch.groups.yahoo.com/group/cdsound/ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of steve harley Sent: Friday, June 25, 2010 3:41 PM To: Pentax-Discuss Mail List Subject: Re: best budget MF 100mm macro On 2010-06-25 13:24 , Adam Maas wrote: > Focus distance is measured from the sensor plane, not the front of the > lens. Your missing 7" is in the body and lens. glad to learn that! however it doesn't fully explain it since front of lens to sensor is only about 5 1/2" -- 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.
