am i right that the apeture on the 70-300 would be 5.6 at 300? so would that be enough to be limit your shutter speed in lower light to not be able to stop action? ( the 100-300 i have now is 6.3 and know if would be worthless for that in lowish light) if so what iso would you have to use to do so?( or do i have that backwards?)( thinking xt) would the one bob mentioned be better for that due to the f4 or the same? (not sure why that doesn't have a range of f stops like the my others do.)
hope op doesn't mind me asking all this sorry to be a thread hog
"Bob,I'm drooling over that shot!awesome!!" ( by deb)
hehe yeah that too. i got fixated on the lens
( sorry can not figure out how to copy something into an open reply and have the quote come up)