How was the bag in the picture taken? What equipment and techniques were used?

I take hundreds of pictures a month with this effect.

After reading your question carefully, I found that you don’t know much about the basics. I strongly recommend that you borrow a basic photography book and read it. After reading it, you will be able to solve the above problems. , otherwise if you ask one by one and when, you still don’t know what new problems will be discovered during the next shooting. ...

For example, there are several ways to blur the background. First, open a wide aperture, and the effect of blurring the background is much better. Second, the shooting distance is close to the product, and the blur effect will be obvious. Third, the farther the distance between the bag and the background, the more obvious the blur will be. 4. Lens focal length. The longer the focal length, the more obvious the blur will be.

Regarding the problem of color difference, if the environment remains unchanged, just adjust the color temperature once in the early stage. If you find the color difference during shooting, adjust it later. Don't take one picture and adjust the color temperature again. This is very troublesome. In the era of digital photography, it is normal to use PS to adjust the photos. The premise is that you must know what was shot in the early stage. What can't be done or are difficult to do during shooting, but it is easier to adjust in PS later. This is very important.

If you have any questions, please feel free to ask.