Mark Roberts a �crit: > Joe Wilensky <[EMAIL PROTECTED]> wrote: ..... > I believe the screw-mount adaptor insulates the contacts in the lens > mount so the camera acts as if there's no lens attached. Apparently, > those who use screw-mount lenses on AF cameras can insert a piece of > aluminum foil to overcome this problem. I've had this same trouble with > a couple of third-party MF lenses that have lens mounts with black > anodized (non-conductive) finishes; no autofocus confirmation. Yes I have this problem with a black mount Cosina 2/50. I scraped the painting to permit the electric contact, so focus-aid works ! The my page: http://perso.wanadoo.fr/krg/ http://perso.wanadoo.fr/krg/Photo/trucs.htm#Astuce
Michel
