Hi,

I'm looking for a 6x7 roll film back for shen hao HZX 4X5-IIA.
I was looking at a horseman 6x7 120 and a calumet 6x7 120 on ebay but not sure which one would work on my shen hao.
Are there any other backs other than these two? Also do I need some kind of adapter?
Thanks,