Pixil007

Are there any issues to consider when buying Nikon Teleconverters for Nikor lenses (70-200 mm) on the D800?

Do Olympus and Nikon or Cannon DSLRs and micro 4/3 use different focusing algorithryms and if so, what are the advantages and disadvantages of each?

I was hoping Olympus would have increased the RAW file size to something comparable to the full frame Nikon or Canon. The size and the focusing paradyme along with the high quality lenses seem...