> > Hi Chip, > > > I have a question for you. Does the AF still work when used with this > f/8 > > combination? The EOS 5 should not be able to AF with the EF 70-200 4L > and > > EF 2x converter mounted. > > I don't have the Canon converter, but a cheaper Tamron. Since the Tamron > lacks the three contacts that are needed by the camera to 'see' the > teleconverter it will not disable AF. And I must say that AF with this > combo works surprisinly well, as long as I use the EOS 5 and focus on a > reasonably bright scene. With the RT I switch back to manual, since the > camera hunts an awful lot. The 5's AF is much better... > > Kind regards, > > Bart >
Hi Bart, So that's why it works for you. Have you tried selecting the center AF point with this 2x converter and your EF 70-200 4L to see if the AF works faster compared to the outer AF points? Just curious as I used EOS 5QD's for a while before going to the EOS 1n family and found that if I pre-selected the central AF point with ECF off the camera would AF noticeably faster than using the AF points on the sides. BUT I only figured this out just before selling the last lens I had that was slower than f/2.8. As I said I was just curious and wanted to know if the central cross sensor was still working better then the single vertical sensors with this combo. Cheers/Chip * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
