I've been busy with other projects, summer and the day job, but here's an update on the Pinstax. After weeks of perking this project through my brain, I enjoyed some frenzied productivity as ideas came to 3D printed reality. One of the problems is that the Instax instant film by Fuji is really fast, like an 800 ISO film speed. This is three or four stops faster than the films I usually use to shoot pinhole. My solution was to source "neutral density" filters that would normally thread onto a 28 mm lens. A "ND8" slows the exposure by 3 stops and I am back in my pinhole comfort zone. Further, I am recycling some design elements from my P6*6 pinhole camera and there is ample room in the extension to tuck a small filter behind the pinhole. A neat solution and some stylistic consistency. Visit the Flickr page for some CAD renderings. Expect preliminary photos within the week.
Here's some revised specs:
Focal length: 50mm
Pinhole Diameter: 0.30mm
Fuji Instax format 62 mm x 46 mm
Angle of view: 64 degrees