This is the second half of a two-part episode. In this half, we talk about the aperture.
Nick and Graham start off talking about the purpose of an aperture on a camera and the collimation of light that is required for a sharp image. Graham floats the crackpot concept of using variously-sized holes in lens caps as aperture controls (10:22). Nick then talks about the optical test-bench he wants to create (14:18).
Returning to the real world from their flights of fancy, they discuss the issues with apertures that get too small and the issues with the wave portion of the particle-wave behavior of light (15:48).
The effects of various numbers of blades in a given aperture are discussed in relation to the holiday movies that make their appearance on The Hallmark Channel (17:47).
Nick describes a lens that uses rotating shutters, rotating apertures, and rotating neutral density filters in a single barrel (29:00).
They discuss what type of aperture each would work with on a quick and simple build (34:32).
Nick talks about a camera he is in the process of designing that uses a dead Fujifilm GX680 body (36:42).
Nick talks about his experience with the Sixty3 plastic panoramic camera that Graham designed and built (49:50) though it takes Nick a bit of time to realize what Graham is hinting at. Graham also discusses another build, the Sixty7 pinhole camera (53:50) made with a Graflok 6X7 back.
Nick laments the lack of email interaction with our listeners (1:02:45) but talks about the cameras Dora Goodman has built (https://www.instagram.com/doragoodman/?hl=en, https://www.doragoodman.com/) and made available for 3D printing.
E76 Old Timey Podcast
E75 David Hancock and His Pinhole cCameras
E74 Joe Van Cleave
E73 Reimagining the Holga
E72 Ethan's Self-Developing Mystery Show
E71 Douwe Krooshof and his Cyanotype Enlarger
E70 Jason Lane and Chromatic Abberation
E69 Jeremiah Jones and his Homemade Cameras
E68 Erik Mathy makes Homemade Lenses
E67 Nicole Small and the Cyanotype Process
E66 What we are working on.
E65 Stereo Photography
E64: Matt Bechberger and his Wondrous Spot Meter
E63 2020 Year in Review
E62 Livestreamed to the world.
E61 Paper Towel Tubes and BFL
E60 Hervé Ellena
E59 Components of Interest
E58 The Mongoose
E57 Graham Burnett of Graflexparts
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