2012/7/3 Bigler Emmanuel <bigler@xxxxxxxx>: .... > ... 0.025 mm = 25 microns would be actually closer to reality ;-) Yes Emmanuel, that is an error in the Rollei 35 manual, the DOF calculator I previously mentioned has 0.0300 as "conventional" COC for the 24x36mm format and 0.0200 as "demanding" COC, anyway it allows to write almost any number as COC. Carlos --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list