I purchased version 4. For some reason, it did not work on my desktop windows 10. It did work on my windows 8 laptop. I will keep the software for i did get a faint Northern Lights photo that I wanted to enhance.

I have to say that as an amateur, I am really liking Topaz's offerings. Haven't had time to learn the masking, but given the other apps they produce, I just need the time to delve into it. I will say their customer support is very quick and comprehensive. I do have a subscription to Lightroom and Photoshop. I will cancel those. Not even close to being a pro; Topaz works well for me!

If I’m not mistaken, the 120 format was still a 2in by 2in slide, true? If that’s what you are talking about, the Nikon ES-2 will handle it. But the slide holder that you use with the ES-2 has an opening with the dimensions of a 35 mm slide, obviously, not square like that 120 format, so you will need to crop. You will be somewhat limited. I understand the older Nikon ES-1 does not have a slide holder, but rather you just put the slide in. I did see some of the ES-1 on eBay. I think you would need to experiment with the lens, or lenses, you would plan to use. Hope you can find a way to make it work. JimR.