To all the people raving about high end $$$$ pro lenses, Ansel Adams made many superb masterpieces using cheap low end *uncoated* lenses, remember those f/5.6 and f/7.7 Goerz Dagor "junk" lenses he used? For example, his "Dogwood" photo was made using a cheap 7" Goerz and "El Capitan, Winter" was made with a 9" Goerz Dagor and "Gates of the valley" was made using a poor Cooke lens. People laugh at these lenses today.