Hi,
So, out shooting the Gourd Arch again. I used the FA 200/4 with the 1.4xTC and then the A* 300/4 by itself. On the tripod on the deck like I did the 200/4 and the 80-160 @ 160. This time just at f5.6 for both the 200 and the 300. I figure this is the most critical aperture to compare.
FA 200/4 plus 1.4x TX f5.6
A* 300/4 at f5.6
I can't say as I see enough difference to matter to the point where one would not want to use the 200 plus the TC. Now it boils down to what one wants to carry.
I picked up a new backpack bag yesterday and can fit the 300/4 in there but could just as easily leave it out and use the 200 plus TC and save the weight. I didn't get the TC with the 200 in mind, it was to lengthen the 300 so I don't need a 400. But options are always good.
Stan