Pinhole cap with interchangeable pinhole inserts for Speed and Crown Graphic format cameras.
Board size is 92.7mm x 94 or 3.65"x3.71". Please make sure this is the correct size for your camera.
Pinhole boards available in following sets:
Set #1 - Pinhole board, 0.5mm pinhole insert
Set #2 - Pinhole board, 0.5mm, 0,4mm and 0.6mm pinhole inserts
Set #3 - Pinhole board, 0.5mm, 0,4mm, 0.6mm and 0.7 pinhole inserts
Set #4 - Pinhole board, 0.5mm, 0.4mm, 0.6mm, 0.7mm and 0.8mm pinhole inserts
Board only - no pinhole - This is option to purchase Lens cap only without pinhole with M22 thread.
Perfect choice if you have one of other Medium format or Large format sets from our other listings.
Pinhole was made from brass shim stock 0.001" or 0.0254mm thick.
Since this shim stock is extremely thin, it's possible to have some wrinkles/curvature due to temperature variations.
I'ts normal and it doesn't affect image quality.
Pinhole cap and inserts are 3D printed from ABS for durability.
Inserts thread size is M22.
Focal length can be varied with extension of bellows. There are several online calculators and phone apps
that can be used to calculate optimal pinhole size for specific focal length and coresponding F stops.
Lens caps/adapters/boards also available in our other listings for following cameras: Hasselblad V system, Mamiya 645, Mamiya RB 67, Pentax 67, Large format in Copal and Compur 0, Copal and Compur 1 and Copal and Compur 3.
You can acquire full set of pinhole sizes and use with with any of these adapters.
For Sinar and Speed Graphic there is lens board available with M22 threaded hole to use insert directly without adapters.
Combined shipping available for any products. Actual shipping fees charged.
Products will be shipped within 3 business days.
Customer responsible for all taxes and duties on import.
We are not able to change declared value of the product.