High quality Bahtinov masks with high bahtinov factor for easy focusing. Clips into any camera lens filter thread using a gentle spring loaded action.
I have listings for all common lens thread sizes so please check my other listings if you need a different size.
This is my new version for 2023 incorporating some design improvements.
- Filter size now embedded in print for easy identification.
- 3 spring loaded clips instead of 4 for easier removal and better optical centering.
- Top surfaces now smoother with less layer lines visible.
Bahtinov factor is calculated using the focal length divided by slot spacing.
50mm = around 62.5 bahtinov factor
135mm = around 168 bahtinov factor
200mm = around 250 bahtinov factor
500mm = around 626 bahtinov factor
Anything over 150 will allow you to focus easily with large diffraction spikes.
A 50mm lens will still work with my masks but the diffraction spikes will be smaller. Not recommended for lenses under 50mm.
3D printed with premium American made plastic.
I can also do oddball filter sizes and custom sized masks for telescopes and dew shields, feel free to message me with any requests.