https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/90D-Showing-quot-Busy-quot-message-with-certain-lens/m-p/484755#M117933 <P>I purchased the Canon 90d when it first came out and loved it.&nbsp; It came with a canon kit lens with I found to enjoy as well.&nbsp; Wanting to move up some I purchased the 70-200 2.8 pro lens.&nbsp; This too worked great.&nbsp; HOwever, when I took the 2.8 off the body and tried to put back on the 135 kit lens, it won't shoot.&nbsp; Says Busy.&nbsp; Advice? I have cleaned the connections, taken out the batteries and SD cards for some time and nothing is working.&nbsp;</P> Fri, 28 Jun 2024 16:45:43 GMT JenniferCoon 2024-06-28T16:45:43Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/90D-Showing-quot-Busy-quot-message-with-certain-lens/m-p/484755#M117933 <P>I purchased the Canon 90d when it first came out and loved it.&nbsp; It came with a canon kit lens with I found to enjoy as well.&nbsp; Wanting to move up some I purchased the 70-200 2.8 pro lens.&nbsp; This too worked great.&nbsp; HOwever, when I took the 2.8 off the body and tried to put back on the 135 kit lens, it won't shoot.&nbsp; Says Busy.&nbsp; Advice? I have cleaned the connections, taken out the batteries and SD cards for some time and nothing is working.&nbsp;</P> Fri, 28 Jun 2024 16:45:43 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/90D-Showing-quot-Busy-quot-message-with-certain-lens/m-p/484755#M117933 JenniferCoon 2024-06-28T16:45:43Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/90D-Showing-quot-Busy-quot-message-with-certain-lens/m-p/484795#M117937 <P>Jennifer,</P> <P>It sounds like the 135 is not locked firmly in place. Could a contact on the lens have been damaged when you removed it?</P> <P>Steve Thomas</P> Fri, 28 Jun 2024 18:56:54 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/90D-Showing-quot-Busy-quot-message-with-certain-lens/m-p/484795#M117937 stevet1 2024-06-28T18:56:54Z