It looks a little symmetrical to me because it is right where the top edge of the prism is. When looked at closely, it appears like little trails left behind by a burrowing insect, but of course insects do not burrow in glass (that I know of).
On Thu, Dec 8, 2016 at 11:26 AM, Collin B <coll...@brendemuehl.net> wrote: > Fungus looks more symmetrical. That looks like lint to me. Too much sense > of depth to the smaller piece. > Assuming that it is lint ... > Check the focusing screen. If that's not it then remove the focusing screen > and try a light poof of air to blow it out. > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- -- Reduce your Government Footprint -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.