This only allows the camera to *try* and AF, it's extremely unlikely it will AF at f/11 no matter what the circumstances, because there just isn't enough light reaching the sensor.
I for one don't think the results from a 75-300 are very good to start with, and they would definitely be much poorer with a 2x TC, but if the original poster would like a sample, please contact me off list ([EMAIL PROTECTED]) and I'll take a couple of shots with that setup on my 10D and email them. Tom P. > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > M. Hille Ris Lambers > Sent: Tuesday, June 08, 2004 1:15 AM > To: [EMAIL PROTECTED] > Subject: Re: EOS Non-Canon 2x extension tubes > > There is a simple way to prevent the loss of auto-focus: > http://www.fredmiranda.com/TipsPage/ > > Cheers > > Marius * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
