terraPin, a 120 Film Pinhole Photography System

thingiverse

The terraSphere Pinhole Camera is unlike any other pinhole camera, 3D printed or otherwise. Developed after years of experience designing and constructing pinhole cameras, the terraSphere is intended to be very easy to assemble, modify, and hack. Derived from the P6*8, the terraSphere also uses 120 film, with a 6 X 8 cm frame, like the Holga, Hasselblad, and other classic medium format cameras. Dozens of P6*8 pinhole photographers around the world provided input and feedback to help shape the terraSphere. The "Slider" joint between the body and extension allows for effortless changes in focal length, angle of view, and magnification. One camera body and film transport mechanism can be used with multiple extensions, each with their own pinhole and shutter blade. Assembly is a snap. A dovetail joint sandwiches the pinhole and shutter without fiddly fasteners. A single bolt holds the joint securely and provides a pre-load on the shutter fulcrum. Reduced number of glued joints in the terraSphere. Velvet or felt is no longer required for light-tight construction. NOTE There is the potential for a light leak at the bottom of the extension-body joint, which manifests at the top of a landscape photograph (remember the image is inverted on the film). For more information see thing:713219: terraSphere Stawp Gap See terraSphere High-Strength Winder (1/4" shaft) for additional winder/knob options! This VIDEO, by Thingiverse nebotron, features a time-lapse assembly of the terraSphere 6x8! This VIDEO shows the basic assembly of the terraSphere, but he printed it in a white plastic that is going to be problematic with film fogging. NOW there are five different extension options, each of which can be found as a complete collection of all necessary parts, in a ZIP file. 65mm, designed for 0.32mm pinhole, f/158 50mm, designed for 0.28mm pinhole f/137 40mm, designed for 0.25mm pinhole f/134 30mm, designed for 0.22mm pinhole f/131 25.4mm, designed for 0.20mm pinhole f/128 Additionally, individual parts are included for your convenience. Don't hesitate to ask for direction if the abundant parts catalog is confusing. Click links for more information on the newest extensions:65mm "Megaron" 40mm "Micrography" Other features: Tripod mount Frame indexing window with cover slide Bolts secure the cap to the body during use for greater security Greatly reduced fastener count terraTool mini allen driver for opening/closing camera Multiple knob choices to customize your terraSphere (can be retro'd to any Schlaboratory 3D printed pinhole camera) Double-spur tripod mount allows a 90-degree orientation without tools The shutter is tensioned by and pivots about a single 3mm bolt. A socket head bolt will fit in the trim plate nicely. 8-12mm length will work; I like to gently tap the hole for a smoother fit and finer adjustment. A gentle touch here will reward you with perfect threads. The cap is held in place by two 15mm-long 3mm bolts, with 3mm captive nuts in the body. If you can find hex-head bolts, there are "knobblers" (press-fit caps) that allow for easy assembly / disassembly without tools. The body is designed to accept a standard 1/4-20 flanged nut for the tripod mount. A 16 mm diameter disc of translucent red plastic allows for viewing frame numbers on the back of the camera. (plastic binder / portfolios are a good source for suitable material)