What's the use of taking pictures in the shade? How to shoot at the back of the house on a sunny day?

I don't understand that you are here. Does the landlord want to take a portrait?

If it's a portrait, there are many ways. Let's take pictures in the shade. In fact, the methods are the same, but the light ratio between the characters and the background is different, so it may lead to either overexposure and perfect background exposure, or perfect character exposure and excessive and pale background exposure. In this case, you can try a cheap reflector, which is generally cheaper. If not, we can use white foam board.

Then you can try the hot shoe lamp, which is also a way to fill the light. The words here are more complicated, involving a series of problems such as single lamp, multi-lamp, flicker, etc. It is suggested that the landlord use reflector.

Then, the color temperature is different in the general shady environment. Looking at the environment at that time, the automatic white balance of the general camera is not bad now, so basically don't worry about this problem, just sample it before you shoot it yourself.

I hope I can help you and wish you a happy life.