terraPin Bijou 6 x 4.5 Pinhole Camera

thingiverse

Little sister to the other terraPin pinhole cameras, Bijou shoots a 6 x 4.5 vertical format in a proper 4:3 ratio. For landscape orientation, just rotate her sideways on your tripod. Using the terraPin slider joint, expect other extension sizes in the future, or create your own! This has become the most popular pinhole camera I have designed with pinhole photographers. NOW with the Sidewinder body for Portrait and Landscape formats! terraPin Bijou 6 x 4.5 frame (56 x 41.5 actual) Designed for pinhole diameter 0.26 mm f/135, 35 mm "focal length" Horizontal angle of view: 61.32° Vertical angle of view: 77.32° CLICK HERE for the latest photographs I have made with the various terraPin cameras.CLICK HERE for terraPin prototyping and development pictures. In addition to the new format, you will also get sixteen exposures per roll of 120 film. For proper film indexing, the film must load on the left and be spooled on the right. At f/135, Bijou uses the same exposure calculations as the P6*6 and terraPin 6X6 in their 35mm focal length versions. Owing to the smaller image on the film, there will be less vignetting than the terraPin 6X9. The Bijou still has a frame 270% larger than the standard 135 (35 mm) film frame. The sliding shutter is a new design that I like quite well. It should be more secure in your camera bag than many of the swinging shutter designs I have used. Also, the extension is symmetrical, so you can easily flip it 180 degrees if you like to trip your shutter on the left side. The terraPin was modeled using Tinkercad and OpenSCAD. Credit and thanks to Thingiverse citizen Aubenc for the Knurled Surface Library v2, which greatly improves the appearance of my cameras. UPDATES Added exposure data with reciprocity failure for Kodak Portra 160/400, 5/28/15 - see: Pinhole_Exposure_Durations_t66_f135.pdf See terraPin High-Strength Winder (1/4" shaft) for additional winder/knob options! ATTENTION This work is licensed under the Creative Commons - Attribution - Non-Commercial license. This license applies only to the files and documents available for download from the Thing Files section of this Thing.All other related content (photographs, videos, and verbiage such as contained in "Description" or "Instructions" ) are excluded from this license. with all rights reserved, unless specifically available for download This notice constitutes a clarification, not a change, to licensing for this design. Instructions Print these plates: terrapin_bijou_body_plate.stl terrapin_bijou_35mm_extension_plate.stl terrapin_bijou_complete_sm_parts.stl You will need the following tools and hardware: superglue 1/4-20 flanged tripod nut 4 x 3 mm socket head bolts, 16mm length 4 x 3 mm nuts0.26mm pinhole 14 mm disc of translucent red plastic for indexing window. Depending on your printer's accuracy and finish, you should be prepared to dress mating parts with a file.Sandpaper can be used, but it makes copious dust - the sworn enemy of film photography. I have experienced parts that fit perfectly off the print bed and parts that required substantial shaping. NOTE: PLA is shiny and you may get internal reflections that look like flares or ghosts. An easy fix is a coat of flat black paint (use a primer) on the angled walls inside the extension. The file "bijou_mefoto_body.stl" is a version of the Bijou body with a tripod mounting plate on the end to fit the MeFoto Backpacker and RoadTrip tripods (and may fit other makes). This gives an easy way to orient to landscape. See this design: QR Plate for MeFOTO Tripods If you find you need just a single part for some reason, the small parts are available individually from the terraPin parts collection. I have included the Stawp-Gap widget for blocking a potential light leak at the bottom of the body (seen at the top of the frame in a photograph). For more information, see this Thing: http://www.thingiverse.com/thing:703591 Detailed assembly instructions pending. Assembly diagrams pending.