Indoor photography lighting problems

Answer together 1 and 2: the most economical thing is to buy a light stand and a light box (the one with energy-saving lamps, a light box with 9 lights, the total power is equivalent to about 7-800W of incandescent lamps), one or two light boxes, a large reflector, light boxes and lamps are more expensive, but the total price will not exceed 600, and dozens of reflectors are made in China. If you have a light box, buy an extra reflector and use it flexibly. It will still work.

If it is 3: S5, you can connect the indoor flash. If it's convenient, you can buy a wireless flasher, 70- 100+, made in China.

This problem is related to the metering mode of the camera. White clothes are underexposed and black clothes are overexposed. When shooting white clothes in the future, turn the "ev +/-" key of the camera to the positive direction, and the photos will not turn gray. When wearing black clothes, just adjust the exposure compensation to a negative number, so it won't turn white.

5. If you save money, buy four desk lamps and replace them with 180w energy-saving bulbs (buy brands, such as Philips and Osram, which have good quality and uniform brightness, so you can't save money). Adjust the position and distance according to the effect at that time, and then shoot.