Tamron 150-600 converter?

[User.81858]

Has anyone used a tele converter with this lens to good effect? if so which one. nothing above 1.7.

 

[mikew]

Hope we are allowed to link to other forums,the Sigma 1.4 will work according to this guy,i guess AF will be camera dependent, i have the Sigma 100-400 f6.3 and the D500 focuses no problem with a 1.4.

Dont know if he took his testing past the point of will it work.

https://www.photography-forum.org/threads/tamron-150-600-with-1-4x-tc.124534/

 

[User.81858]

Thanks Mike real food for thought now