Yes, those lenses will work.... that's what the G and D stand for. :~) And the conversion factor is correct as well. This is a good thing if you want to boost your telephoto lenses... but a downer for the wide angle side of it... you will have to buy a very wide angle lens to get the 28mm comparitive that you seek. Roughly a 20mm will give you a focal length equivilant of a 30mm lens... 17mm would be better....

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