I actually know there is an answer her somewhere , but I looked for awhile and did not see it apparently.
I have a 5DMKIII with a 70-200 MKII lens and I need more reach and I can not afford a 400mm 2.8 as I do not rob banks nor make that much money.
So I thought about the new teleconverters,but how much am I going to loose in quality.
I spoke to a Canon Techie and he said the 2x III was really good.Then I spoke to another more experienced photographer and he said the 1.4 and crop was better.
So I am confused as they both cost the same ,but I want to be able to sell these photo's of Dressage.
Any help out there please....