This Holga lens with built-in filters and prisms will let you play around with filter effects without having to break the bank. �Granted, this lens kit isn’t going to be professional quality, but it will work with digital or film SLR cameras with Canon�EF or EF-S mounts or Nikon F mounts. �You just mount it [...]
Source: http://the-gadgeteer.com/2013/05/29/add-a-kaleidoscope-of-lenses-to-your-dslr-or-slr-camera/
SIEMENS CDW CHINA MOBILE CISCO SYSTEMS