Fuji Instax Wide 300 camera hack mod with a vintage Schneider Kreuznach 105mm F4.5 Radionar lens

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An introduction to my current camera mod project: putting a 60-year-old German lens onto a Fuji Instax camera.

Fuji Instax cameras are fun but the Wide 300 has a few things I'd like to change:

-I'd like to have control over the aperture and set the f stops
-I'd like to focus the lens myself (I think the Instax is more or less focus free, okay it has TWO whole settings)
-I'd like to control the shutter

To do that I gutted out a brand new Instax Wide (what was I thinking) and have spent the last few days trying to figure out how to make the mod.

MORE importantly, I want to show you how to do it, the simplest way I can figure out. It will take a few tries but...let's go.

Still in progress.


And here is the step by step of how it is assembled in its current configuration of parts.


For the ACCURATE specs on the original Instax Wide 300...see below.


Instant Film Fujifilm Instant Color Film "instax WIDE"

Film size 86 x 108mm

Picture size 62 x 99mm

Lens Retractable lens, 2 components, 2 elements, f = 95 mm, 1:14

Viewfinder Real image finder, 0.37 x, with target spot

Focusing Motor-driven 2-range switching (0.9m - 3m / 3m - ∞)

Normal Mode (0.9m - 3m) Landscape Mode (3m - ∞)

Shutter Release Programmed electronic shutter release, 1/64 sec - 1/200 sec.

Exposure control Automatic, Interlocking range (ISO 800) : LV 10.5 - LV 15 Exposure compensation (Lighten-Darken Control) : ± 2/3EV

Film Feeding Out Automatic

Flash Built-in, automatic electronic flash, Charging time: 0.2 sec - 6 sec (using a new battery), Flash charging indicator (LED lights in red), Fill-in Flash Mode, Effective flash lamp range: 0.9m - 3m

Liquid Crystal Display (LCD) Exposure counter (number of unexposed films), Lighten-Darken control, Fill-in Flash Mode

Power Supply Four size AA 1.5 V alkaline batteries (LR6),

Capacity : 10 film packs (Based on our test conditions)

Others With film pack confirmation window, close up lens, and tripod socket included

Dimensions & Weight 167.8mm x 94.7mm x 120.9mm (not including protrusions) / 612g (without battery, strap, film pack, and close up lens)

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