If you read my comments on the Tamron 100-400 you will know I got a tap in console. The problem is I have 5 cameras ( 2 x810 2x 7100 and an 800) and may use the lens on any one...So how do I do that ? None of the u tube video address that issue.
I tried the lens on two cameras so far with the tap in at 0/400mm. the D810 needs +1 and the D7100 +6.
My logic was to set the camera FFA to whatever is needed at 0/400 (ie D7100 +6) and then adjust all the other focal lengths . The settings should then match any of my cameras if they have there FFA correct at 0/400.
Anyone have any views on this.