err announcement and 1.4 Aperture

Gishy

Senior Member
Hi to all,
I have D500 camera and 200-500 ,5.6 lens. i use to take photos of birds on M mode and Auto Iso.
Sometimes i get an err announcement and 1.4 Aperture (I wish i had :)
What can be the reason for that?

Thanks in advance
Have a nice weekend
 

Needa

Senior Member
Challenge Team
Try cleaning the contacts on the lense and lense mount. Also be sure the lense is locking in when mount it.
 
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