from my tumblr blog
via Flickr http://flic.kr/p/C2TS8Z
In 1992, I gave in to curiosity and lens lust and purchased the 600mm mirror lens from Sigma. The front element has a mirror (in reverse) at its center, forcing the light to travel three times through the lens and thereby allowing for a compact and relatively inexpensive design. 117 more words
Great tit with a grain of wild sesame in its mouth.
Have a nice weekend, my friends ! via Tumblr http://ift.tt/1MVs9Ox
600mm Rod is huge, and to get a high quality Acetal Copolymer rod that is 600mm diameter is huge. That is over 24 inches, yes, 24 inches. 18 more words
Gehr Plastics, Boothwyn, PA has announced the addition of 24 inch (600mm) diameter Natural Acetal Copolymer Rod to their expansive product line. The 24 inch diameter Acetal is now the largest production size in the World. 22 more words