I had, until recently, been pondering the decision. Should I go all out and spend big bucks on a Nikon 80-200 f/2.8 that I've lusted over for years, or stick with stuff that I have?
With a devil on one shoulder whispering "just buy it", and an angel on the other whispering "you don't need one", I searched for more reasons why the pro guys buy them.
The angel pointed out the reasons why I don't need one:-
Look on Flickr, all the images are at f/5.6 anyway.
You don't need high shutter speed - you have VR instead.
80-200 is too small a range - you have 18-200 already.
Then the devil had his turn, mostly after a beer or three:-
It's just sooo sexy.
You NEED one, so just get one.
You ned f/2.8 to stop motion - forget that VR stuff.
After discovering a trade-in option on stuff that I had obsoleted somewhat, I got one for a bargain price. And you know what? I now know why I needed one.
The thing lets the camera focus much easier and faster in difficult conditions.
200mm stays at 200mm when things are closer.
Background blur happens now.
My speedlight works further away.
But.
I still stop down to f/5.6 or more for depth of field quite often.
The thing weighs A LOT.
I now need a monopod, as I can shoot more stuff. (And even more stuff as pro gear is addictive!)
Did I do the right thing?
Discuss please.