Hello
Im interested if you got a answer to the cause of the problem on this ? I am currently in the process of a very big transferring project of VHS to Pro Res HQ 1080i. Ultimately it will be for DVD and edited together with current footage. The source of the VHS varies from rough to very good but I haven’t been happy with the results, it looks like there is slight noise running through everything especially if watch it at 100% in size, and on footage that is of low quality I notice lots of horizontal lines, even of shots without any fast movement.
For comparison If capture the VHS at 625i 4:3 and drop in into a 1080i sequence and let FC do a software upres it looks no worse in quality.
It all feels grainy with video buzz on whites.
For comparison I got some 720 captures done from the same VHS source by a long standing professional company, they used an Alchemist Platinum machine and their captures and they have a softer less grainy look, which looks better.
Did the new Io they sent you work better ?