Just noticed Gary buying a NikonTC 14 in order to try stacking itch his existing TC 14....
I have the TC 17 and TC 14 so was wondering if anyone has experience of stacking these tc's....

The 1.4 and the1.7 nikon tcs physically won`t stack, just tried them.Are you sure? Linky
The 1.4 and the1.7 nikon tcs physically won`t stack, just tried them.
Yep, my error the link included a Kenco 1.4 with Nikon 1.7 (as edits)
Yep, my error the link included a Kenco 1.4 with Nikon 1.7 (as edits)
Whichever, let us know how you get on.
How does the magnification work out i wonder?
1.4 + 1.7 = 3.1
or
1.4 x 1.7 = 2.38