Eos Rebel t5 c How do I get the 75-300 mm lens to maintain contact with the camera?

[RobertTheFat]

1. Line up the colored dots.

2. Insert the rear end of the lens into the opening.

3. Turn the lens clockwise until you hear it click.

[jrhoffman75]

Do you mean you get an error message about the lens not communicating with the camera?

There are sevreral possibilities: 1. dirty contacts. carefully wipe contacts on lens and camera with a microfiber cloth. 2. sticky contacts. Gently push on the contacts in the camera body to be sure they travel freely. 3. failing conductor cables in lens. Lens will need repair/replacement depending on cost benefit comparison.

[garynw]

thanks for your response. I have tried the contact cleaning.  I fear the latter "conductor cables".   Will pursue a local shpo/dealer to determine.  Thank you