Quote Originally Posted by brucemuir View Post
Yes you can use the 6x6 but if for some reason that shines too much extraneous light, black matte board works great for custom neg carriers.
Yes, that will work well. Another possibility is to use a 6x6 frame of fully exposed and developed film, and to cut the 6x4.5 window out, then sandwich that with your negative. Do the final cropping with the easel.