Solar Filter Lens Hood for Canon 100-400mm (77mm diameter)

thingiverse

**[Updated Design Uploads New Version for Thinner Films](https://www.thingiverse.com/thing:2446643)** I'm working on a better version of this lens hood to accommodate very thin filter materials, such as BAADER solar filter film, which is incredibly thin and delicate. Unfortunately, the current design won't work well with this type of material. Note that I'll be unable to test print or fit any parts together for at least two weeks, starting from August 2nd. **Instructions:** To assemble a functioning filter holder, you only need to download and print two items: a body and a clip. There are three body options available: * Main-body (no hood) * Main-body-w-hood (with standard hood) * Main-body-w-hood-thinned (with thinned, narrower hood for reduced plastic usage) Optional parts include: * Rear cap (covers the lens side of the filter holder) * Front cover (for main-body without hood) * Lens hood cover (standard hood) * Lens hood cover thinned (thinned, narrower hood) **Design Updates:** 07/18/17: Updated rear cap to ensure a proper fit. 07/17/17: Revised rear cap after test print issues arose. 07/14/17: Working on a revised design that minimizes bulk and waste. I plan to use a smaller, circular sheet instead of the original 100mm square format. **Design Specifications:** This lens hood is designed for 100mm square (~4") solar filter sheets. Please cancel your test print and adjust the scale as needed to ensure a snug fit on your lens. I've been printing with ABS plastic since it's meant to withstand outdoor use, including exposure to sunlight and temperatures in vehicles. PLA might work if you're careful not to overheat it. **Filter Material Recommendation:** The specific filter material I used is available at [this link](https://smile.amazon.com/gp/product/B00DS7IFQS/ref=oh_aui_detailpage_o07_s01?ie=UTF8&psc=1). Please note that the price has increased significantly since my initial purchase. I recommend shopping around for a more reasonably priced option and checking out my redesigned version linked at the top of this description. This is my first design using Fusion 360, and I'm excited to share it with you!