I'm still a bit confused, Franz!! If I put a negative in my negative
carrier, the whole negative is visible, but when I enlarge the negative,
it either doesn't quite fill or overfills a 10x8 sheet of paper, so some of the negative is lost!!
Niall
[color="#FF0000"][font="Garamond"][size=3]Niall, make it quite easy for yourself. If you currently own a "regular" 35mm negative carrier (preferably metal), simply purchase a metal file, then trim some of the border away [testing the amount by periodically inserting a negative as a reference] until you have what you want.
Otherwise, look for a “bantam” negative carrier, which will give you a full-frame 35mm print (black borders).
I have also filed away some of my 6x6 negative carrier, so I also have full-frame prints.
When printing on 8x10 paper, you will also need to print slightly smaller than the full sheet of paper; there will be plenty of room for your black borders[/size].[/colo