I did some test shooting in regular color 35mm negative film, and then scanned the film in. Each exposure measures 12x13mm. Since the images are small, a normal 36 exposure roll will yield about 75 pairs of images. Below is a section of my film. You'll notice that the pairs are spaced out, see the 2nd exposure from left on the bottom row, and its pair is on the top row, 2nd from the right.
zoomed in more, on one single frame
Two more things to note when using this camera- there's no built-in meter, so you will need to use a spot meter that reads exposure values. You don't set independent shutter speeds and apertures on this camera, but a single dial for E.V. Also, if you're getting your film developed elsewhere, be sure to tell them not to cut the film.
So, if you choose to use this camera for purposes other than to make View-Master slides, you can use negative film, and scan it in for digital use, or for small size printing. Another way to utilize this type of camera is to create 3D images. While 3D images can now by created 100% digitally, this way mixes both old and new technologies. If you're creating a digital 3D image, you would shoot two images- one as is, and for the 2nd one you would need to move horizontally a couple of inches. This camera does that shift in one take for you, because of its two lens design. Either way, you will need to layer the two images in your photo editing software and change the color channels so that your image is red and blue/cyan. The below images are meant to be viewed with the traditional/"old style" 3D glasses with one red lens and one blue lens. If you have a pair laying around, go ahead and try it. They will pop out of your computer screen!
If you're interested in learning more about creating 3D images like these, this is the best and easiest online tutorial I've seen.
And want to get really crazy with your digital 3D images? The site Start 3D allows you to combine your two images into moving "3D" images.
all images © Jenn Alexander Fletcher