Print File 檔案保存底片收納內頁，4x5吋，可放4張底片或幻燈片（僅適用活頁夾）- 25入

I can actually get a decent contact sheet right through these pages without pulling out the negatives. The thin backing makes a real difference when you're trying to fit a binder full of sheets.

Finally, sleeves that don't add bulk to the binder while still protecting my 4x5 negatives. The clarity is good enough that I can actually see details for contact sheets without pulling the film out.

The thin backing makes a real difference when I'm contact printing — I can get a sharp proof without pulling the film out. Also nice that the plastic is crystal clear, so spotting dust on the negs is much easier.