Xiaoyi YI action filter mount

thingiverse

Update (June 2019): the plastic ND filters I bought are a total waste of money. The image is completely washed out and there are ugly sun glare reflections everywhere. I highly recommend switching to TBS Jello Guard filters, which are made from high-quality glass and work a hundred times better. Here's a modified version of this holder designed specifically for the TBS filters: https://www.thingiverse.com/thing:3663318 This is a Yi action filter holder that's been redesigned to take advantage of flexible filament printing capabilities. It accommodates 27x27mm square filters and features a unique stretching mechanism that makes it easy to install the filter before mounting on the lens. One thing to note is that this holder doesn't use standard-sized filters, so you'll need to cut your own custom filter to fit. I experimented with using cheap 1.6mm Cokin filters, cutting them down to size with a Dremel tool, but unfortunately, it's too dark during the fall season, and I won't be able to test its effectiveness until summer arrives. The design of this holder is heavily inspired by A_Lappi's Xiaomi Yi lens protector (https://www.thingiverse.com/thing:898265), with some significant modifications to accommodate the unique requirements of the TBS Jello Guard filters.