Bahtinov Mask for Panasonic-Leica 100-400mm Lens

thingiverse

I modified the mask to accommodate the Panasonic-Leica 100-400mm zoom lens. I also made an adjustment to enlarge the fit of the mask, and added small felt pads inside the three prongs to provide a better grip on the lens hood without scratching it. Without these pads, the mask is difficult to secure due to its rigid design. As there are no tapered edges to the prongs, pushing them further onto the lens causes them to want to pop off. The pads distribute tension evenly at the tip, allowing for smooth and secure attachment all the way on. This modification makes focusing on stars significantly easier!