3D printed accessories for hassle-free astrophotography

Made in Germany - Shipped from Germany

Upgrade Bahtinov mask set for William Optics refractors

Fine-grade Bahtinov mask set for RedCat 51 with a better patter than the integrated mask.

(use the arrows on the left and right sides in the middle of the frame to scroll through pictures)

If you use a RedCat 51 telescope, you know there there is a mask for focusing integrated in the cover of the telescope. I also own a RedCat 51 and I once was wondering how the integrated mask compares with my other fine-grade Bahtinov masks. I was pleasantly surprised to see that my mask performs much better. You do not believe this? Just compare the spikes patterns on the screenshots in the product gallery!

This mask is proved as a set. You can put one on the tube of the telescope and replace the integrated one with another mask provided here.

The mask come with a storage box.

Please not that the masks are printed with a high-quality PLA filament allowing fine details which starts deforming at 60 degree Celsius. Please do not leave the mask in direct sun or in other hot places.

If you have questions, feedback or suggestions for custom changes, please contact us using this form.


VAT exempted according to UStG ยง19
Delivery Time: ca. 3-4 workdays
Additional costs (e.g. for customs or taxes) may occur when shipping to non-EU countries.