terraPin 6X6 "DX18" - 18mm Pinhole Camera Extension

thingiverse

The TerraSlide DX18 is a revolutionary pinhole camera extension designed specifically for 120 film in a square format with a 6X6 frame. This cutting-edge design features a slide-in replacement mechanism that instantly changes the focal length of the camera, dramatically altering shutter speed, angle of view, and possibly even depth of field. Crafted to accommodate a precision-engineered 0.18mm diameter pinhole, this TerraSlide DX18 achieves an unprecedented f/100 center and nominal f/127 setting. Boasting an incredibly wide horizontal and vertical angle of view measuring a whopping 114.6°, photographers are guaranteed breathtaking visuals. CLICK HERE to witness the stunning results produced by this extension, as captured by renowned photographer Donna, aka the "D" in DX18. This TerraSlide DX18 is an ultra-fast, super-wide-angle extension designed for the terraPin 6X6 pinhole camera system. Featuring a convenient captive sliding vane shutter and cleverly recessed design, exposure control has never been easier or more intuitive. The short focal length of this extension gives rise to significant light falloff at the frame's edges and corners, but fear not! By cleverly radiusing a 14mm ring around the center point, the designers have managed to achieve an excellent compromise between f/100 and f/185. A detailed diagram illustrating these impressive capabilities can be found below. IMPORTANT NOTE The TerraSlide DX18 is proudly licensed under the Creative Commons - Attribution - Non-Commercial license. This generous licensing arrangement only applies to downloadable files and documents available within this Thing's documentation. All other related content, including photographs, videos, and narrative descriptions, are subject to all rights reserved unless specifically made available for download. Getting Started With only five distinct pieces to assemble, construction is a straightforward process as illustrated by the provided exploded diagram. You will need: * 0.18mm diameter pinhole in thin metal stock * Miscellaneous finishing tools such as files, sandpaper, and an X-acto knife * A recommendation from us: lightly coat the interior surface of wide-angle extensions with flat black paint to minimize internal reflections and ghosting on exposed film.