Yep, I'd like it if a decent reviewer (no KR, not you) did a D700 + 1.4 vs D300 comparison (IQ and AF). I can't see it though - can you imagine walking about with a 24-70 attached to a 1.4 TC :biggrin:I think performance of D700 + 2.0x TC vs D300 + 1.4x TC will be roughly equal. Someone should try it.
Cost would still be an issue, but I'd pay the extra if it performed that well with TCs.
:biggrin: Obviously if you were always needing the extra reach, this would be pointless. I don't need the reach all the time - I'd really like a couple more stops ISO for indoors shooting (I've tested at home, and with f2.8 iso 3200 would be useful). For my use the ISO gain isn't worth the reach loss and extra costs.Now the important question becomes this: Did paying an extra $1200-$1500 for the camera and $350-$400 for the converter buy you improved IQ?