On Jan 10, 2013, at 8:55 PM, Bob Sullivan wrote: > Dave, > You need a special lens for Klein bottles.
Balderdash! Here's a photo of a klein bottle with my DFA 50/2.8 macro: http://www.flickr.com/photos/ellarsee/8370075454/in/set-72157632489977625 This one is particularly cool, because it is a Klein bottle, bottle opener. It and many other awesome bits of sculpture are available at http://bathsheba.com Sheba immediately won my respect when she showed up at a beach party and let us fire one of her sculptures out of what was basically a small butane fueled cannon (spud gun). While I was at it, I got a few photos of some of her other sculptures in this set: http://www.flickriver.com/photos/ellarsee/sets/72157632489977625/ The 3-d projections of tesseracts were pretty easy, the 3-d projection of the dodecahedron analog to a tesseract (120 sided is 4-d) was a bit more challenging. -- Larry Colen [email protected] sent from i4est -- 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.

