Thanks Geoff, I am going in 15mins the sellers way to take my son for a theory test, so was hoping to pop in at the same time and look at it, i would be using it on a 70-300 vr.
Thats a lot of stop, i did think that i could up the ISO, would that be ok?.At the long end the 70-300mm VR is f5.6 isn't it?
If so, then you'll end up with a 600mm f11. Might sound nice, but f11 is slow and dark. You'll lose AF for sure.
Thats a lot of stop, i did think that i could up the ISO, would that be ok?.
Although saying that i did not receive a reply phone call from the seller, so at this point not sure if its still for sale. But it is interesting to knw for future reference...
Look at the 1.7 instead perhaps?
You'd still have the same issue. I wouldn't use any converter on a lens that is f5.6 or slower.
Thanks to all, I think i have made my mind up now.
cheers.