Hello jim, I have Kenko 1.4X 300 Pro and I am using it with EF70-200/4L on EOS 50. I am very satisfied with it's performance. It refers to the camera correct F-number, that is 5.6. There is only little bit slower AF and some loss of resolution with it but for me it is acceptable. I have tried it also with EF28-105, but somehow I did not found such combination useful for me. Also it works with EF50/1.8.
BR, Janis > -----Original Message----- > From: Jim Arnott [mailto:[EMAIL PROTECTED]] > Subject: EOS Kenko teleconverters > > > Anyone have experience with Kenko 2X Teleconverters MC4, MC7, > PRO300 with consumer lenses like 100-300,3.5-5.6 and 28-135. > > Thanks, > jim > > photo.jarnott.com > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
