How to use Oly 5050 in tetra housing

I just aquired a tetra housing for the oly 5050. I realize that this is old equipment but wonder is someone who has used this setup could give me some pointers on how to best use it?

Al

I used that combo a few years back. It was quite the macro setup at the time if you used two diopters. Some very good super macro came from that Oly5050.