> I've used them both, in the proper sequence, on the 600mm for 1176mm! Yes, the sequence is ~very~ important - if you put the TC on the ~front~ of the 600, you get some really serious vignetting - <vbg>.
Fred
> I've used them both, in the proper sequence, on the 600mm for 1176mm! Yes, the sequence is ~very~ important - if you put the TC on the ~front~ of the 600, you get some really serious vignetting - <vbg>.
Fred