Nothing CMF Phone 2 Variable (Adjustable) ND filter set - Polarizing
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A cheap and easily swappable DIY adjustable set of nd filters for your phone!
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Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution
The cheapest set of ND filters that you will ever find!
This 3D printable set of variable ND (neutral density) filters is designed specifically for the CMF Phone 2, allowing you to easily adjust light intake for better photography control. The design uses two polarizing filters stacked together — when rotated relative to each other, they create a variable ND effect by reducing the amount of light passing through. You will have to make 2 circle cutouts from the polarizing sheet.
Here are the 2 sizes of circles that you will need:
21.5mm diameter - for the outer ring
17.5mm diameter - for the inner ring
Here is a link to a cheap sheet of filters that you can use:
For best results, I would recommend using a 0.2mm nozzle.