I need to photograph the surface of metal samples, such as peeling and cracks, in a small white light studio in the laboratory. What kind of equipment is better?

2) Nikon AF-S 105VR lens.

3) Nikon r 1c 1 (one Su-800 trigger and two +SB-R200 flashlights)

4) Kengo 52mm polarizer (this is unnecessary, try not to add any lens to the lens for macro shooting)

5) Manfutu 804RC2 pan/tilt (not required, just install it on the rack)

6) Manfutu 190XPROB tripod

7) Little White Scenery

Another point: buy a cable to release, the purpose is to prevent the machine shock caused by pressing the shutter by hand, which will affect the picture clarity.