Digital BW, The Print

(URL corrected)

> For the Canon lenses I've marked for DOF, all I need is the f/11 mark.

This is an example of what I've been doing for a long time in terms of marking Canon lenses with DOF guides: 
http://www.paulroark.com/Canon-50-200L.jpg

(BTW, this older 50 - 200 L f3.5-4.5, fluorite elements at all, with added 72 mm non-rotating filter ring and built-in aluminum barn-door lens shade is available for cheap to someone who wants a non-IS Canon L zoom. [off list] Photo-do used to have the MTF for this one. At f/11 and 85mm this zoom usually out-shot my 85mm f/1.8 at f/11.)

Paul
www.PaulRoark.com