The performance of the S-3 110 lens in a stacked setup is fantastic but for best results, the lens needs to be mounted in reverse. This can be an issue for some since the lens does not feature front accessory threads. Using a lens tube system, in this case Thorlabs SM2, makes it really easy.
This new setup diagram for the S-3 110 paired with the Schneider Componon 2.8/35 as the front lens that I’ve added to the tube lens page for the S-3 110:
Follow this link to the S-3 5.0/110 Tube lens page: https://www.closeuphotography.com/scitex-s3-110mm-lens