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Use budget image sensor to assist in focusing on 120 film cameras,  
612, 617 & 624 (100 megapixel~equivalent)  cameras available now.
Use budget image sensor to assist in focusing on 120 film cameras,  
612, 617 & 624 (100 megapixel~equivalent)  cameras available now.
Use budget image sensor to assist in focusing on 120 film cameras, 612, 617 & 624 (100 megapixel~equivalent) cameras available now.
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19 backers pledged HK$ 39,284 to help bring this project to life.

About this project

DIY Medium Format Hybrid Camera, Probably, 1st in the World project video thumbnail
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DIY Medium Format Hybrid Camera, Probably, 1st in the World

HK$ 39,284

19

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

047ed24c37f8292d03978056be219173 original

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

Twofourths 612+e Camera diy kit, Topcon 75mm f5.6
Twofourths 612+e Camera diy kit, Topcon 75mm f5.6

 

Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, ilford delta 100, f/22,1/125
Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, ilford delta 100, f/22,1/125

 

Twofouurths 617+e camera diy kit, Fuji Fujinon W150	f/5.6, Fuji Neopan Acros BW100, f/5.6,1/500  @  Hong Kong International Pillow Fight Day 2017
Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, Fuji Neopan Acros BW100, f/5.6,1/500 @ Hong Kong International Pillow Fight Day 2017

  

Whats New?

A lot of friends and clients gave me valuable advice after my first Kickstarter crowd-funding exercise. The mostly discussed topic was focusing. Apart from landscape, some people also wanted to use big lens to take portraits. Some use larger aperture to freeze fast-moving action while other photographers use films of different sizes, such as 612 or 624, etc.  

1. Use low-price image sensor to assist in focusing.

Earlier we introduced two types of 617 cameras - with and without focus adjustment function. There was little demand for the former. Probably using butter paper to help focusing is a bit of trouble in outdoor shooting. To address the issue, we now use another away to reflect the image on the screen - through the lens and image sensor. Get a low-price image sensor, place it where the film is installed and connect it to the external screen. It will show the image to be captured on the film. Install the film when you are certain the focus is accurate.

The downside, however, is that it only shows a small part of the target shooting area so the butter paper is still useful because it allows the entire target shooting area to be previewed.

2. New camera sizes available,  612 ,617, 624

Though it takes some extra effort but film cameras is a still a big cost-saver, compared with shooting with digital camera. Join the league of Large format lens photo-taking with Twofourths camera! Enjoy the fun of a totally new way of photo-taking in lower cost.

Is high resolution photography meant only for the rich? 

In2017, high resolution photo could only be taken by expensive digital camera such as Sony A7R of full frame size sensor 42MP.
Canon 5Ds~50.6MP,
Pentax 645Z~51.4MP,
Hasselblad X1D ~50MP,
Fuji GFX-50S~51.4MP.

 

How to make a high resolution photo with low cost camera?

Alternative, it can be produced by film scanning tool. But the film size, film ISO and quality of scanner affect the photo resolution. According to professional image expert, a ISO 100 4”x5” film can be scanned to 100 mega pixel, a block of ISO100 135 film into 7 mega pixel and ISO 50 was changed into 16 mega pixel.

ISO 100,  6x12 film can be scanned to 50 mega pixel 
ISO 100,  6x17 film can be scanned to 80 mega pixel
ISO 100,  6x24 film can be scanned to 100 mega pixel
( same size iso 50 film,  can be scanned to double )

Epson Perfection V850 Pro Photo Scanner
Epson Perfection V850 Pro Photo Scanner

For further information of film scanning, please click here ~ R. N. Clark’s pages.


How the lens work?  

The camera lens is able to condense the real vision into image circle projection . If the flange focal distance is correct, image display is clear, at the same time, the film put into at accurate position records the image at that moment.

 

Different lens produce different size of image circle, we need to adopt suitable film for taking photo. Following large format lenses are common in the second hand market. Click this to find further information of numerous large format lens. ~ Large Format Photography. Info

These are some large format lens online market, check out for infomation and prices reference. www.keh.com, www.catlabs.info,  www.bhphotovideo.com, www.ebay.comlargeformatphotography.info

The green zone lenses are smaller, their image circle is between 100mm and 165mm, so that 4x5 film will cover it. The blue zone lenses are little bit bigger than green zone's, these image circle is between 170mm and 200mm, so that 5"x7" film cover it

Our Solutions. 

 Although default film are 4x5, 5x7 and 8x10 we offer a lowest cost option that also allow convenience on film use and developing. The shortcoming is that top and bottom of image will be reduced to change the object from square to rectangle. About 50% of the image taken will be cropped.

To make up for this, we offer three solutions. 612, 617 and 624 camera via 120 format as film media, it is popular and easier to find than  4"x 5" and ,5"x7" and 8"x10"film. the Twofourths camera DIY kit Solutions compatible with any 120 format films, As a recording media, the effective size 617 (6cmx17cm) is almost equal to 50% of 5"x7", if we assume 5x7 is a Hotdog. 617 is equivalent to the sausage, tomato and cheese from the hotdog, with the top and bottom of bun wiped off. both 617 and 624 good at taking landscape and panoramic photograph.  612 is good at portraits photo taking little bit.

 

                                       
Twofourths 612+e Camera diy kit, Topcon 75mm f5.6
Twofourths 612+e Camera diy kit, Topcon 75mm f5.6

 

 

Twofourths 612+e Camera diy kit, Topcon 75mm f5.6, Fuji Neopan Acros BW100, f/5.6,1/4s
Twofourths 612+e Camera diy kit, Topcon 75mm f5.6, Fuji Neopan Acros BW100, f/5.6,1/4s

 

(100%)
(100%)

 

 

 

 

 

 

Twofouurths 617+e camera diy kit,  Schneider Super-Angulon 90mm  f/8
Twofouurths 617+e camera diy kit, Schneider Super-Angulon 90mm f/8

 

Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, ilford delta 100, f/22,1/125
Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, ilford delta 100, f/22,1/125

 

Crop from above photography (100%)
Crop from above photography (100%)

 

Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, Fuji Neopan Acros BW100, f/8,1/500
Twofouurths 617+e camera diy kit, Fuji Fujinon W150 f/5.6, Fuji Neopan Acros BW100, f/8,1/500

 

Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f5.6
Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f5.6

 

Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6,  Kodak Portra 400 f/16, 5sec (Special Thanks to Ginger Whisky Bar)
Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, Kodak Portra 400 f/16, 5sec (Special Thanks to Ginger Whisky Bar)

 

Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, Kodak Portra 400, f/5.6, 1sec (Special Thanks to Ginger Whisky Bar)
Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, Kodak Portra 400, f/5.6, 1sec (Special Thanks to Ginger Whisky Bar)

 

Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, 1/15sec, F8  ILFORD HP5 400.
Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, 1/15sec, F8 ILFORD HP5 400.

Assembly, The camera body is made of three main parts. Part A. Lens mounting board and wooden board. (to lengthen the distance between the lens and the film) Part B, Exposure space and winding up key for film, designed for 120 film, metal made tripod mount at the bottom allows users to stabilise and elevate the camera.

Part C. Camera back, the small round window in the centre is designed to allow users to check the position for film winding.

Follow the steps and assemble the camera before use. Other than the lenses we offer all parts shown in the 617 camera and installation guide. Beside the lenses, we offer all parts of 617 camera and installation guide. step by step installation is required works. It's not complicated. It can be done in few hours.

// installation video//

// Tripod install //

 

What is Flange Focal Distance? 

Every large format lens carries the distance (“mm”) in it name. it is lenses focal length, made easy classification for lenses type.  

Every large format lens also having a flange focal distance announce by the manufacturer, This distance figure is their minimum length of each lens. Keep the lens rear and the film apart according to this distance. The subject standing over hundreds feet or infinitely far away.will be distinct clear. It is great for landscape shooting. 

Lengthen the focal distance and focus on closer images.

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Twofourths 624e+ Camera DIY kit ~ UCI 2017 Track Cycling World Championship
Twofourths 624e+ Camera DIY kit ~ UCI 2017 Track Cycling World Championship

 

place focusing assist panel with the external screen, to certain the focus is accurate
place focusing assist panel with the external screen, to certain the focus is accurate

 

Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6,  Kodak portra 400, 1/250sec, f5.6,  19727x4846 pixel ( click to open) 25mb
Twofourths 624e+ Camera DIY kit, Fuji Fujinon W210 f/5.6, Kodak portra 400, 1/250sec, f5.6, 19727x4846 pixel ( click to open) 25mb

 

 

The key to taking excellent photos with our low-priced camera is accurate focus, adjustment of focal distance between the film and the lens rear, by adjust the focus ring. The camera can be used to shoot at close range from 30cm ~ infinitely far away, such as group photo. Use the focusing assist panel to reflect the image on the screen to simulate the film and focus at the image, mark the different target distance when the image is clear.

The marks on focus ring to assist take sharp photos someday with same distance.

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Question: Which lenses are compatible with Twofourths Medium format cameras DIY Kit, 612, 617 & 624?  

Answer: whether large format (#1, #0 mount board) or medium format (#0,#00), which the rear lens small than 61mm, are appropriate.

 

 

                                       
    

 

 // install film & take photos //

 //disengage and take out the film//

 

 617 Camera DIY Kit, Photography Samples

 

 

Risks and challenges

Since we are experienced in last kickstarter program, we fulfilled customer's various request, manufacturing and customer communication are run-up smooth, we believe we will be able to meet our clients' need within the timeframe again,

Wing Siu

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Support this project

  1. Select this reward

    Pledge HK$ 100 or more About $13

    (A) Support us. - Developed 617 film

    Support us. - Developed 617 film
    all backer of this reward gets a thank you card and a developed 6cm x17cm film (during product testing period)

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    Pledge HK$ 1,500 or more About $193

    (B) EarlyBird 612+e Camera DIY Kit

    The Towfourths 612+e Camera DIY Kit
    Special: HK$1500 = around US$193

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    Pledge HK$ 1,680 or more About $216

    (C) 612+e Camera DIY kit

    The Towfourths 612+e Camera DIY Kit
    Special: HK$1650 = around US$218

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    Pledge HK$ 1,700 or more About $218

    (S)SUPER EarlyBird 617+e Camera DIY Kit

    The Towfourths 617+e Camera DIY Kit
    Special: HK$1700 = around US$220

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    Pledge HK$ 1,780 or more About $229

    (D) EarlyBird 617+e Camera DIY Kit

    The Towfourths 617+e Camera DIY Kit
    Special: HK$1750 = around US$230

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    Pledge HK$ 1,950 or more About $250

    (E) 617+e Camera DIY Kit

    The Towfourths 617+e Camera DIY Kit
    Special: HK$1950 = around US$252

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    Pledge HK$ 2,000 or more About $257

    (F) EarlyBird 624+e Camera DIY Kit

    The Towfourths 624+e Camera DIY Kit
    Special: HK$2000 = around US$258

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    Pledge HK$ 2,300 or more About $295

    (G) 624+e Camera DIY Kit

    The Towfourths 624+e Camera DIY Kit
    Special: HK$2300 = around US$296

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Funding period

- (32 days)