Tips - reverse ring

First keep in mind that because with reverse ring the camera is loosing contact with the lens
(no electronic contact) you may not be able to take shoots otherwise than in manual mode.
Also do not forget that the diaphragm blade have to be stuck open as in the photo below:

For indoor shoots in case you do not have a studio, I recommend a cheap solution... a lamp
The one in the photo below is about 17 pounds for 135 watts

Of course when you decide to buy a reverse ring, keep in mind to buy the right diameter ring for your lens diameter   😎