RB67 Chimney ShowerCap

thingiverse

The Mamiya RB67 camera has an accessory chimney viewfinder that is pretty awesome! Problem is, I can't find any evidence that the viewfinder eyepiece glass came with any sort of cap for protection from dust, debris, or other damage, so I whipped up one really quickly. (Whether it turns out they did offer a cap for it is kind of pointless now, since I've designed one to fit). Something worth noting is that my chimney (pictured), doesn't have an eye cup or anything like that, it is just the viewfinder glass and ring, so the ShowerCap is designed with that in mind. Theoretically, It wouldn't be any trouble to simply make this design taller for those chimneys that have an eyecup. I just don't have one to measure and test with, so I didn't bother. If you are anything like me, you might be asking why the name "ShowerCap"... Well, I started working on another variant of this, where the cap is larger, and covers more but, while working on it, I thought of this variant, where the cap basically just covers to topmost part of the chimney and ring, just like a shower cap, just covers the topmost part of one's head when showering. Thus the RB67 Chimney "ShowerCap" was born and named.