Links and Resources
Comparing Canon's USM and STM lenses
Aug 26, 2013 23:07:13
#
bcheary
Loc: Jacksonville, FL
http://petapixel.com/2013/08/26/video-comparing-canons-usm-and-stm-lenses-using-the-70ds-dual-pixel-af/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+PetaPixel+%28PetaPixel%29
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Links and Resources