Is it okay to add an ordinary desk lamp to the 50cm studio?

Absolutely. . . As long as you don't take the order (it looks pitiful ~ ~ ~)

Color temperature and so on, that's all to scare people who just entered the business.

What era is it now? The styles of photos are so diverse, such as blue, green, cool colors, warm colors, Percy colors and Abao colors ... If we look at the color temperature, all these colors are incorrect! As long as you are good in the later stage, the early stage is to shoot a material and shoot it casually. Everything is fine.

Oh, photography, if not for business, happiness is more important than anything else.

If you have a goal, achieve it.

If you want to do commercial photography-... fine. Just pretend I didn't say anything. All the above are ignored.

Prepare 1.2 million to buy equipment first. . .