terraPin Bijou "Incher" - 25.4mm Pinhole Camera Extension

thingiverse

The Terra Pin Bijou is a high-performance pinhole camera designed for 120 film with a 6X4.5 frame in portrait format and standard orientation. Made for optimal results, the terraPin Bijou utilizes a 0.22mm diameter pinhole. This pinhole boasts an f/115 center rating, and its nominal rate comes in at f/132. When using this camera, users will discover a wide horizontal angle of view of 78.5 degrees and an expansive vertical angle of view measuring 95.6 degrees. This extension offers the perfect accessory to complement the terraPin Bijou's standard design, providing photographers with enhanced shooting options in challenging situations. Easy to slide into place with the terraPin Slider system, this camera expansion allows users to precisely control shutter speed and achieve precise results. Convenience was taken into consideration during the design process - a recessed design shields unwanted obstruction if one chooses to cover/uncover the aperture with their finger tip. A significant trade-off must be considered: due to the extension's short focal length, there is noticeable light falloff around the frame edges. Specifically in corners. In spite of these constraints, an effective compromise has been established between f/115 and the more distant points on the fringes of the image (f/196). A 28mm ring surrounding the central f/115 area results in a pleasing balance that maintains image integrity at every extremity - with particular regard for f/132 being well-suited to balance all extremities. WARNING! This content is released under a non-commercial Creative Commons license that allows users to freely adapt, distribute and reproduce these files but strictly disallows their sale. Excluded from this policy are visual material like photographs or movies that have been added as part of the documentation accompanying this download - rights reserved unless specified otherwise in the downloadable documentations. As for the Incher slider system: Simply attach 0.22mm diameter pinholes onto the provided sheet, and use finishing tools (saws and a hammer, etc.) to make these small pinholes slightly thicker at their tips than in any other parts. Attach each into their respective place and complete it all. All you'll need is: 0.22mm dia thin sheet And also two ten-millimeter long 3-millimetre diameter nuts This is a great extension with easy installation to increase your picture making power - thanks