So I have custom setting a9: Built - in AF Assist illumination set to ON, but no assist light lights up in low light situations. Do you think I have a blown assist bulb or is there another setting I need or something I'm not doing right?
Yes I have read the manual Wayne. I have the centre point selected and it is in AF-S mode. No light. I just attached my SB600 and I can see the IR assist working, so looks like I may have an issue.