Changes

Jump to navigation Jump to search

Instant Photography

2,875 bytes added, 2 May
Created page with "Experiments with instant photography, primarily using Fuji Instax media. == Cameras == === 3D printed pinhole === Designed and 3D printed a custom Instax Mini format 3D camer..."
Experiments with instant photography, primarily using Fuji Instax media.

== Cameras ==
=== 3D printed pinhole ===
Designed and 3D printed a custom Instax Mini format 3D camera.

=== Adding custom lenses to existing Instax camera ===
Disassembled an Instax camera and 3d printed parts to fit manual lenses.

== Film ==

=== Transparencies ===
Modify the film stock to create image transparencies.

==== Existing work ====
All methods seem to involve manually scrubbing off the film layers (see Film Composition section below). This is time consuming, inconsistent, and can leave scratches or blank spots in the resulting image.

* [https://www.lomography.com/magazine/348682-instax-manipulation-how-to-make-transparency Instax Manipulation: How To Make Transparency (Lomography)]
* [https://www.youtube.com/watch?v=lgtEt4EiAqc FUJI INSTAX TRANSPARENCY, be creative with INSTAX (Analog Things)]
* [https://www.reddit.com/r/AnalogCommunity/comments/1bx1mmn/instax_transparency/ /r/AnalogCommunity subreddit]


==== Desired Method ====
A non-mechanical process (likely chemical) that removes the unwanted layers without damaging the image.

===== Film Composition and Function =====
Instax film uses "Direct positive sigma crystal emulsion technology". The film layers are listed below from back (exposure side) to front (image side). See the last page of the datasheet for a diagram.
# Backing layer
#* Magenta tinged clear plastic (daylight temperature correction?)
# Base
# Acid Polymer Layer
# Neutralization timing layer
# Processing Fluid
#* Black paste stored in pouch, spread across image by rollers
#* Alkali (potassium hydroxide)
#* Opacifier (to block light during development)
#* Other developer chemicals (potassium thiosulfate and uracil)
# UV absorbing layer
# Development layers
#* Three layers of light sensitive silver (halide) (blue, green, and red)
#* Three layers of oppositely colored hydroquinone dyes (yellow, magenta, and cyan)
#* Dyes paired with unexposed, developed silver halide transfer to the image receiving layer
#* Intermediate layers between colors
# Light shielding layer
# Light reflective layer
#* Opaque white pigment (titanium dioxide?)
# Image receiving layer
# Base
# Glossy surface backing layer

===== References =====
* [https://asset.fujifilm.com/master/apac/files/2020-06/e2749958c1b417f9b0b3ae0e0a0b55fb/instax_mini_datasheet.pdf Fuji Instant Color Film Datasheet]
* [https://cen.acs.org/articles/87/i12/Instant-Film.html What's that stuff? Instant Film (Chemical & Engineering News)]
* [https://science.howstuffworks.com/innovation/everyday-innovations/instant-film.htm How Instant Film Works (HowStuffWorks)]
* [https://www.chemistryislife.com/the-chemistry-of-instant-polaroid-film The Chemistry of Instant Polaroid Film]
* [http://www.graphicsatlas.org/identification/?process_id=333 Instant (Internal Dye Diffusion Transfer)]

Navigation menu