CP photography

Rick Walker (walker@cutter.hpl.hp.com)
Fri, 07 Jan 1994 17:11:51 -0800

> Randy Lamb wrote a fantastic article for CPN some time back on
> _P.villosa_, but as his reference object he used a Canadian coin. I'm
> still not sure how big that is! The size difference between a U.S.
> 10 cent and 25 cent piece is significant, for example!

Every photo bag should have a 5 cm long white stick with black tick marks
every cm. If you want to be fancy, the back side can be black with white
ticks. Makes a very tasteful looking and unambiguous reference.