Actually, I think mine is the Shen Hao, oops.

Quote Originally Posted by hirokun View Post
...but soon realized that I found it annoying that I had to remove the ground glass first before I was able to attach it
Now that you mention it, yes, I find that very annoying too, a slip-in one would be ideal. I use a Wista metal field and it is a little fiddly to get the GG off: Pull it up, hold the two spring arms, let the gg fall back down into the rear standard, slide it sideways, let the springs snap back down, remove GG... a two handed job, not fun in the cold and near impossible with gloves.

I was aware of 6x7 slide in backs, but not multi-format ones like the Sinar... I anticipate their ebay prices rising sharply after this thread!