EOS 6D and cheap glass

No I am not advocating buying cheap lenses for your EOS 6D, rather the opposite as the one lens of mine that I really want to exchange is my telezoom. I have since back in the analogue days a Canon EF 75-300 1:4-5.6 II, wich can take some acceptable photos but do not come near the better glass in quality. Will probably exchange that for a 70-200 f4 IS when I have the funds to do so. I think the 2.8 version would be both too heavy and too expensive for me.

No I started this thread just to show a photo of cheap glass.... a wineglass from IKEA shot with an EF100mm f/2.8L Macro IS USM on an EOS 6D with two YoungNou YN467 creating the light (you see I am an amature as I skimp on a lot of accessories, but these are cheap and work for me).

Camera Canon EOS 6D Exposure 0.006 sec (1/160) Aperture f/13.0 Focal Length 100 mm ISO Speed 100

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My EOS 6D photos are here: http://www.flickr.com/photos/swedishgoose/sets/72157632627819251/