i use a 6 stop filter many times and sometimes a 10 stop filter with the AF enabled and working through the filter, even on cloudy days. all of my AF bodies will focus most of the time under the conditions i use them. 10 seconds at f11 is pretty normal exposures for me with AF enabled. when it doesn't AF, it's usually because of the scene and the camera won't focus without the ND filters either unless i change AF points to something other than what i want in focus. then it's MF time, but that is far less than 10% of the time. if i'm doing macro work, it's almost always MF though.
Herb.... ----- Original Message ----- From: "William Robb" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, November 27, 2003 9:50 PM Subject: Re: *istD shutter speed > One of the things with ND filters that I recently discovered is that they > can cause the AF to kaak due to the light loss.
