The aperture of 50 1.4 should be good, which is very suitable for shooting ... in this weak light, a large aperture is beneficial. ...
When you shoot jewelry, you should open a large aperture, so as to ensure the shutter speed first, and then blur the background to make the subject stand out. .....
In addition, it is likely that the white balance is set incorrectly ... The easiest way is to use automatic white balance, or set the white balance manually according to the color temperature of the light ... or choose a white balance mode that is more in line with your light. ....
This is the time to mention ISO relatively, and it can also improve the shutter speed. ....
Correct exposure is also important. Only when the exposure parameters are appropriate, the photos will look good. ....
In addition, you may need to pay attention to lighting. Generally speaking, there are more than two light sources in the shed ... it is best to shoot jewelry in reverse light, so that there will be good-looking light around the jewelry, which will look very dull when you shoot along the light ... and there should also be high-light areas and dark areas. In this way, the quality of photos will be improved.
In addition, the macro head can also be tried to see if you want to show the whole or a detail!