Lens Hood for Fujifilm XF80mm Macro Lens

prusaprinters

<p>Every once in a while, the 3D printer saves the day. The XF80mm macro lens is one of my favorite lenses for the Fuji APS-C cameras, but mine was sadly crippled one day when the stock lens hood fell off, rolled into the street, and was crushed. Even worse, the lens hood is not available for purchase separately. After using a velcro lens shade accessory for a little while, I realized it just wasn't going to cut it long term, and I wasn't about to go with a filter thread attachment hood. So I designed, printed, and assembled a replacement that is stronger than the original. It's of course a bit heavier, and is a bit simpler in that it has a smooth inner surface instead of a stepped one, but it works well enough for my purposes. It at least wont break when dropped or stepped on.&nbsp;</p><p>The design was an interesting challenge, since I didn't have an existing hood to reverse engineer. I used a similar one from another lens as a reference, but had to measure and design around the macro lens' features. A multi-piece hood seemed like the best option for the bayonet mount due to the overhangs required whichever orientation you went with. It required space and installation margin for the heat-set threaded inserts, which increased the outer diameter slightly. With Autodesk's Fusion360 software, I was able to ensure that it would work in both orientations before printing. During prototyping, I had to play around with the thicknesses to get the optimum fit, since getting precise measurements on that part of the lens was difficult, and the tolerance is very tight. The little notches in the tabs are to keep them aligned and prevent them from sliding outwards. &nbsp;</p><p>I printed with Prusament PETG for durability, and used the standard nozzle for simplicity. The inner surface ended up fairly shiny, so I sanded it with a coarse grit paper to give it a rougher surface. I tested the lens hood at the extreme angles, and it works well. There may be other surface treatments that would work better, so let me know if you have any ideas on that front. If anyone wants to try improving on the design by adding the ridges like on the stock lens hood, please let me know how that goes. I'll probably test that and add it as an option in the future. Thankfully, I'll be able to keep the base and just replace the upper portion. I included the CAD model in the hopes that others will be able to adapt my work for other lenses, and also in case you need to set it up for different hardware.</p><p>I bought the hardware in multi-size kits on Amazon, but you can also source them separately from a hardware distributor such as McMaster Carr. The soldering iron tips for the threaded inserts are available in both places, but are more expensive on McMaster and one I bought there was too wide to work in tighter spaces. You may be able to get away with a standard conical tip of the right proportions. There are plenty of tutorials out there if you need help with that process. Regular socket head capscrews would work fine for the assembly, but I like the lower profile button head ones here.</p>