Ccd photography has two shadows.

There is something wrong with the lens.

This is a dark angle, that is, the imaging circle is smaller than the CCD area. It's obviously a lens problem, and the wide-angle end should be the most serious. You should keep looking for Canon to repair it.

Method:

1, go to the camera brand for after-sales maintenance. Advantages: Guaranteed original fittings, good service and assured maintenance. Disadvantages: the price is higher.

2, to the electronic market to find a shop to repair the camera, the price will be cheaper than the price of the after-sales service station. However, due to incomplete accessories, it often takes a few more days.

It's best to inquire about fame through the local photographers association or photographers. They generally recommend those with cheap prices and good reputation, and they are generally old masters.