And why not go back to using them?

But it was not enough. So I started to think of a simple way to turn them into digital devices for an easy and immediate use.With this in mind, after destroying four digital cameras in my attempts,I decided that the easiest way would be to opt for an electronic open source and that there was no better solution than a Raspberry PI B3 (for its dimensions and power).

First prototypes for a digital back

First prototypes for a digital back

Digital back with the current version.

Digital back with the precedent version.

So I started this project and, after one year of hard work in search of a solution, I finally managed to solve the problem.

 

Design and I'm Back measures
Design and I’m Back measures

Focusing area

The area of the photo is smallest of the whole real camera area, due to the focusing Screen. Instead of 24x36mm, will be held 26x18mm.

 

Focusing Area
Focusing Area

 

 

Photo Gallery

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How to use I’m Back !

“I’m back”works with a great number of models and it has a Z X Y regulation which allows to adjust the F stop (24X36mm) which is placed behind the shutter.

XYZ axis to adjust the exposure hole

XYZ axis to adjust the exposure hole

“I’m back”works with a great number of models and it has a Z X Y regulation which allows to adjust the F stop (24X36mm) which is placed behind the shutter.

The camera is linked to the device through a Flah Sync cable. To take a picture after adjusting the camera, all you need is to turn it on and choose one of the three picture options from the menu. Normal color, dim light color and black and white. The software is not fully developed yet as I need more time to have it fully developed by a Python programmer.

As regards the exposure, since the necessary amount of light is measured by the camera module, the camera must be set to B (Bulb) speed. After focusing the object, the shutter button must be pressed for 2 to 4 seconds according to the light. I am considering solving this problem and make the camera capable to auto adjust the exposure time, but now that’s the way it works.

The file is saved in the USB flash unit which allows transferring the photos to a PC or even to a cloud server.

 

Very important:
The photos taken by I’m Back presented here were treated with Picasa, because, as already happens with modern digital devices, tiny hair or dust can disturb the images. It is very important, before you take pictures, to make sure that the surface of the focusing glass which will record the image is clean. But bear in mind that you should always treat these photos as taken with a film camera and not with the latest generation of digital cameras! 😉 in order for you to have an idea of how the photos come out, I have inserted a photo still untreated.

*Raspberry Pi, Adafruit and Sony are registered trademarks

 

First prototype
First prototype

 

First prototype
First prototype

 

05-DSC_3400

08-DSC_3405

Last prototype

17-DSC_3416

I am a little tired…

DSC_3427-bw

But happy! Thank you all for giving life to our project!