NOTE: this print needs many additional parts and some serious post-processing. This is not recommended for beginners! Mind the supplied .pdf manual for detailed instructions for this build. NOTE2: even if this project needs precision, it is still a 3D printed device based on a wideangle adapter and not a precisely machined and optically calculated single focusser. Don't expect mechanical or optical performance performance of an e.g. a Rapido FVD-16a or even Rectilux Hardcore DNA. the Pfocus is the DIY single focus solution based on a wideangle converter. While this has some downsides like soft edges, CA or a slight widening effect, it also has some benefits like little weight (around 335-350g), multiple mounting options, a good wideangle coverage (more than a Rapido FVD-16a!) as well as a super close focus distance. Please refer to the .pdf manual for full tech specs. * This build consists of five to six printed parts and is very easy to assemble, the pitfall is the needed precision for the print as well as the post-processing of the parts. * the Pfocus is meant to be somewhat modular, therefore it can be made with Canon- or Nikon-Style focus direction, different front filter threads (77mm or 82mm recommended) and three different mounting options - 77mm male threads like a Rangerfinder, 75mm like a Rectilux Hardcore DNA or Rapido FVD-16a or a universal mount fitting everything else. * The additonal parts needed include things like screws and nuts, self-adhesive velours, step-down filters / empty filter, lube and of course a proper wideangle adapter: the Fujinon WCV-82SC. Please mind the .pdf manual for detailed instructions how to print, prost-process and build this variable diopter. It also contains detailed lists of all additonal parts and tools needed for this build.