Best lens for Canon 7d
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05-02-13, 11:02 AM
Join Date: Jan 2013
Location: New Alyth, Perthshire
Following on from earlier threads I would be interested to hear from Canon 400mm L owners on any dust ingress into lens from push/pull focus system.
Also interested from anyone who uses extension tubes on super telephoto lens. Could see me using tubes on 400mm for extending 400mm to take images of flowers and therfore decreasing depth of field to blur foreground and background. Appreciate that this means moving camera closer to subject.
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