Hi, Would this focus aid work with this lens ?? http://www.facebook.com/photo.php?f...211105722.8442.121284431240400&type=1&theater This is the lens. It is an autofocus lens: http://www.bhphotovideo.com/c/product/554035-REG/Tokina_ATX116PRODXC_11_16mm_f_2_8_AT_X_116.html Thank you, kind regards, igmolinav : ) !!! P.S. Do you think it was better if this thread should have been posted in the digital photography forum ?? P.S.2. My interest in that focus aid is because apparently it is one of the most inexpensive ones on the market! Would you like to recommend another one ??