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  1. C

    Extension tubes and mfd

    Quick question about extension tubes. When using a lens(especially one without floating elements) on extension tubes is it best to focus at infinity where the lens may be sharper and ad more extension if needed or use the mfd? I'm going to be using the 40mm pancake I think. Thanks
  2. C

    Sigma 150 Macro Something I've never seen before

    A reflection of the diaphragm blades. 5D2, off camera flash.
  3. C

    Sensor reflections from eos-m

    I've heard that some of the M4/3rd's and Sony Nex(Alpha) suffer from reflections from the sensor. I've had an Eos-M for a couple of months and have seen my first example of it from the M. I'm just wondering if anyone else has come across it, and if it will be a problem across all the short...