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Shoot large formats sheets with Polaroid Land Cameras
Old 06-11-2014   #1
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Shoot large formats sheets with Polaroid Land Cameras

This is an guide on how to use large format sheets (9x12 cm) in Polaroid Land Cameras. Even though it is not a convenient way to shoot film, it could be a nice instruction to the world of large format film.


Bockenheim Campus by pacco_racco, on Flickr

Senckenberg Museum T-Rex by pacco_racco, on Flickr

Basically, all you have to do is to modify an empty Polaroid film pack. However, you'll find some further information in this guide on how to develop the film in an ordinary Jobo film tank and how to scan the final film sheets.


How to use large formats sheets in Polaroid Land Cameras by pacco_racco, on Flickr

1. What you need

Basic equipment:
- Polaroid Land Camera (or any other camera that takes 4.25×3.25 inch Polaroid film packs)
- Empty 4.25×3.25 inch film pack (I took one from a Fujifilm FP-100c film)
- 9x12 cm film sheet (such as Fomapan 100 9x12 cm)
- Scissors

Film development equipment:
- Jobo Uni Tank 1520
- Film development chemicals

Scanning equipment:
- Flatbed scanner with film scanning option
- Photo stitching software

2. Open film pack

First of all, disassemble an empty film pack in its three single parts.

3. Modify film pack

Since 9x12 cm film sheets are slightly too large for the size of the film pack, remove one of the borders at the long side of the film pack.

4. Load film sheet

Now you should be able to put a film sheet into the pack. Sacrifice a sheet to practice loading and reassembling the film pack. After that, load a single film sheet into the pack in an absolute dark room. Pay attention to load the sheet properly, i.e. the light sensitive side looks through the film pack “window”. Reassemble the film pack and put it back into the camera. Leave the dark room.

5. Set film speed

Since many Land Cameras have no manual exposure options, take care to set the proper film speed.

6. Develop film

After you've exposed the sheet, go back into an absolute dark room. Open the camera back and remove the exposed sheet from the pack and put it into a film tank. Usually, you take dedicated film tanks or print paper tanks to develop large format sheets, but I used a Jobo Uni Tank 1520 that “takes” up to two sheets. Do not forget the black “pipe” to prevent light leaks! Close the tank and leave the dark room. You have to consider one important point before you start to develop your film: Since 9x12 cm film sheets are very close to the edges at the top of the tank, you have to accordingly fill the chemicals to the top. As a consequence, more chemicals are required compared to the usual demand of 135/120 film development!

7. Final sheet

The developed film sheet should look like this. Notice the blackened border that indicates an absence of chemicals at the top of the film tank. This is not a problem since the image itself is not affected.

8. Scan film sheet

While many flatbed scanners are able to scan film, they have a transparency unit that is too small to scan an entire large format film sheet at once. However, you can avoid this issue by separately scanning two parts of the sheet in a row. Take something to fix the film on the scanner glass (such as 120 film mask). Finally, open the files on your PC and stitch both parts together.
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Old 06-12-2014   #2
Devin Bro
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Neat little DIY, thanks for sharing!
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Old 09-19-2014   #3
E. D. Russell Roberts
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Nice, might very well give that a try.

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Old 02-11-2015   #4
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im going to have to try this out! thanks for posting
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