Right now the difference is ~$300 cheaper for option #1 (80-400mm) but option #2 does the distinct advantages of being an f/2.8 lens when the TC is removed. Right now the 70-200mm f/2.8 is selling for $2400 but occasionally goes on sale at $2100-ish and used lenses can be found in very good condition for around $1900-$2k.
So assuming the two options are equal in price, which would make the better 400mm lens?
So assuming the two options are equal in price, which would make the better 400mm lens?