Kenko N-AFD 2X Teleplus MC4 compatibility issue?

[philipcs]

I have tested Kenko N-AFD 2X Teleplus MC4 today, however doesnt work with my D70s + 50mm f1.8 and Tamron 90mm f2.8 Di.

Aperture show F--, Auto Focus not working. what is the problem?

[philipcs]

finally bought the Kenko N-AFs 2X Teleplus MC4 - RM150 from mir.com.my

http://i39.photobucket.com/albums/e196/pp86/rubbish/KenkoN-AFs2XTeleplusMC4.jpg

confirmed the previous copy that i tested is faulty unit. luckily i have tested before pay... so becareful when you buy stuff online from unknown member.

i havent really compare the quality, will go back to Park to shoot Ant and Dragonfly tomorrow evening. :D

1 thing to confirm, the AFS is sucks all time for all lens.... very very hard to AF.

here is the pics before and after attach 2X TC.

Tamron 90mm
http://i39.photobucket.com/albums/e196/pp86/rubbish/teleplus01-90mm.jpg

Tamron 90mm + TC 2X
http://i39.photobucket.com/albums/e196/pp86/rubbish/teleplus02-90mm2x.jpg

Tamron 90mm + tube
http://i39.photobucket.com/albums/e196/pp86/rubbish/teleplus03-90mmtube.jpg

Tamron 90mm + tube + TC 2X
http://i39.photobucket.com/albums/e196/pp86/rubbish/teleplus04-90mm2xtube.jpg