It’s better to have it and not need it than to need it and not have it. F4 is great for saving weight and cost, but you’ll always wonder “what if?”
If you can afford it, get the 2.8, if you can’t, get the 4 and use it and test to see if you really need the 2.8, lenses hold their value well so you can always trade up. And of course, you can rent to try before you buy either.
It’s better to have it and not need it than to need it and not have it. F4 is great for saving weight and cost, but you’ll always wonder “what if?”
If you can afford it, get the 2.8, if you can’t, get the 4 and use it and test to see if you really need the 2.8, lenses hold their value well so you can always trade up. And of course, you can rent to try before you buy either.