Hello,
So I recently picked up an Aptus 75, along with a Sinar X and a Hassy H1. On the Sinar I have a 150mm f/5.6 Digital APO Sironar Lens, and on the Hassy the 80mm kit lens.
After doing some in-studio testing with the back on both cameras, it appears that the Hassy images are looking much sharper. Can it be that the Rodenstock Digital lens is not up to par with the Hassy, or if I am just not getting good enough focus after numerous trials? Currently I am using a 10x loupe on the groundglass, with a Phase FlexAdapter. No live preview yet.