I made a storage case for the HVSQ dark slide. It also serves as a container for exposed film while shooting on location.

It features a two-way locking mechanism; the ring on the light shield also serves as the lock for the box.

Exclusively for HVSQ light-shielding blades; not compatible with others.

It holds 20 sheets of film—just enough to cover a day's shooting.

Dual-opening design,

A one-way entry point; once the negative is inserted, it goes in but does not come out.

Open one and take out all the negatives.

It's pretty fun.

A printed item. Haven't decided yet whether to sell it.

Let's conduct a survey, then.

Open source or play-for-you? You decide.