topic ef lens 24 - 70 in Professional Video

topic ef lens 24 - 70 in Professional Video https://community.usa.canon.com/t5/Professional-Video/ef-lens-24-70/m-p/123307#M1746 <P>cannon lens - shooting on Sony F5.  The f-stop constantly changes by itself.  I set it - it then starts changing.</P><P>Also, the indicator "T2.8" blinks rather than stays on.</P><P>Please help.</P><P>Thanks,</P><P>Eddie</P> Mon, 03 Nov 2014 18:14:43 GMT eburns 2014-11-03T18:14:43Z ef lens 24 - 70 https://community.usa.canon.com/t5/Professional-Video/ef-lens-24-70/m-p/123307#M1746 <P>cannon lens - shooting on Sony F5.  The f-stop constantly changes by itself.  I set it - it then starts changing.</P><P>Also, the indicator "T2.8" blinks rather than stays on.</P><P>Please help.</P><P>Thanks,</P><P>Eddie</P> Mon, 03 Nov 2014 18:14:43 GMT https://community.usa.canon.com/t5/Professional-Video/ef-lens-24-70/m-p/123307#M1746 eburns 2014-11-03T18:14:43Z