wdross wrote:
Actually, until then, one can can shoot with the 300 f4 along with using the X1.4 and X2 teleconverters. Although fix focal lengths instead of a zoom, this offers 420 f5.6 and 600 f8 (600 f4, 840 f5.6, and 1200 f8 in 35mm angle of view terms). Not quite as easy as the super sharp super zoom in use, but very sharp images for their focal lengths.
Or either the Panny or Oly 100-400.