The P6*6W, a Wide Angle 120 film Pinhole Camera

thingiverse

First three rolls of film! Kodak Ektar 100, Fuji Acros 100 and Fuji Velvia 50 transparency film:https://www.flickr.com/photos/theschlem/sets/72157645030373964/ This is an alternate set of parts for assembling a wide angle version of the P6*6 pinhole camera. This collection only includes the new 35mm extension and updated shutter-related parts. The original P66 already shoots a fairly wide angle frame at 62 deg horizontally; the P66W shoots an angle of 77.5 deg horizontally. For comparison, a 50mm lens on a 35mm film camera has a 40 deg horizontal angle of view. The wider angle means a faster camera too: f/135 vs f/167 -------------- P6*6W Specs -------------- 35mm focal length designed for a 0.26mm pinhole f-stop of f/135 77.4 deg horiz. field of view. -------------- P6*6 Specs -------------- 50mm focal length designed for a 0.30mm pinhole f-stop of f/167 62 deg horiz. field of view. These parts are posted here as a new Thing, but have been added to the official Thingiverse P6*6 parts repository, as an option. Exposure duration table updated including: Fuji Neopan Acros 100 B&W neg film Ilford Delta 100 B&W neg film Kodak Ektar 100 Color neg film Fuji Velvia 100 Color slide film Fuji Velvia 50 Color slide film Ilford FP4 B&W neg film Kodak 400TX B&W neg film Additionally, all photos I make with this version of the P6*6 will be posted to: https://www.flickr.com/photos/theschlem/sets/72157645030373964/ and tagged "P66W" 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 If you have questions, please post a comment - I try to be very responsive to Thinginauts. Assembly is essentially the same as for the original P6*6, using the following alternate parts: p66_35mm_extension New_shutter_plate which consists of the following four parts: New_shutter_blade New_shutter_clamp New_pinhole_clamp New_trim_ring The pinhole_disc remains the same, but is included for completeness. A wider field of view increases the potential for peripheral obstruction of light or "vignetting". Vignetting is a flaw in camera design, and all the shutter-related parts have been redesigned to minimize this effect. Additionally, these parts replace the original parts released with the P6*6 See "P66_Users_Guide_x,doc" for instructions on printing, assembly, and photography" This document can be found in the official Thingiverse P6*6 parts repository. ***** The following information is duplicated from the P6*6 instructions, with pertinent changes NOTE When unloading the camera, and as the full spool is removed, the film might be loose on the spool and not fully protected from light by the backing paper. I have designed a film clip which slides in with the empty take-up spool and prevents the film from unspooling (and subsequent light leaks) when unloading the P6*6, It is an easy fix, requiring no modifications to the camera. There is a small lip inside the cavity that will prevent the clip from rotating. See: http://www.thingiverse.com/thing:197924 Everything is designed to fit on the smallest of 3D printer beds, the largest dimension being just more than 5 inches (128mm). If you print on something smaller, the large parts could be rotated 45 degrees. If this is a limitation for you, let me know, and I will supply a suitably modified file. Also - only tested with BLACK ABS - if you want/need to print this in another color/material, a couple coats of a flat black paint on all interior surfaces will guarantee a light-proof camera. You can see additional pics of p6*6 prototyping at:http://www.flickr.com/photos/theschlem/sets/72157636258787994/ ----- Printed Bits ------ Camera body 35mm extension Camera cap and winder assembly New Shutter plate components (all parts are also available non-plated) ----- Non-Printed Bits ------ 4 x 3mm-16mm long socket bolts, washers, and nuts 1/4 - 20 flanged nut (for tripod mount) Pinhole 0.26mm Recently included is an Exposure Duration document for several readily-available films with reciprocity failure. If you can expand on this, please share. I hope that the various Pinhead Pinhole cameras arouse an interest in this marvelous photography genre. Also refer to PINHE4D or PINH5AD for links to technical information and tutorials. I remain at your disposal should you have questions. --- SOME HELPFUL LINKS --- An encyclopedic article with cross references:http://en.wikipedia.org/wiki/Pinhole_camera A self-described comprehensive pinhole tutorial:http://www.diyphotography.net/the-comprehensive-tech-guide-to-pinhole-photography The basics from Kodak - a quick and dirty primer.http://www.kodak.com/ek/US/en/Pinhole_Camera.htm Make your own pinhole:http://www.withoutlenses.com/articles/how-to/drill-your-own-precision-pinhole-apertures Pinhole Designer - an excellent pinhole design and exposure calulator. The reciprocity failure function is gold. Sadly, Windows only, but worth it.http://www.pinhole.cz/en/pinholedesigner/ Mr. Pinhole - More calculators and more links.http://www.mrpinhole.com/index.php Worldwide Pinhole Photography Day:http://www.pinholeday.org/ A paper pinhole camera, 2D printed in a Czechoslovakian magazine, in the 1970's: http://www.pinhole.cz/en/pinholecameras/dirkon_01.html Books, books, books; Knowledge is power:http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dstripbooks&field-keywords=pinhole+photography