I have the Horizon 202 which is a wonderful little camera, not the best, but wonderful for straight and sometimes bent, picture taking.
The negative size is 24x57mm and is printable for the entire image. I have gotten 23 frames from a roll, but that is tight and self loaded.
The camera has six shutter speeds that are made by selecting one of two rotating speeds with three shutter slit sizes that are governed by the one of three shutter speeds you select.
I found that I almost always use the handheld under the camera grip for walking around fun shots. With serious stuff I use a tripod and found the viewfinder to be remarkably accurate in showing what you will or will not get on the negative.
It is possible to shoot handheld and by being careful, one can control the bubble level as you look through the viewfinder to get pretty close to dead accurate horizon level pictures.
Being a swinging lens camera you can really play around for in camera effects, one such is here:
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Whilst I would not suggest it is in the same category as the other panoramic cameras, its not too bad an operator.
If you pick one up second hand, chances are if you dont like it for whatever reason, you should pretty much get your money back. I bought mine brand spanking new about five minutes after seeing one for the first time. City scapes with this little camera and the pictures I sent to the friends and rellies in Germany after using the Horizon in Germany, are where this camera surprises everyone.
Nothing like curved and tapering buildings in tight old world cities and towns to perk ones photography up.
It uses a 28mm lens and I would suggest you acquire the stick in filters that came with the camera, well mine did anyway and they store in the quickly detachable hand grip for immediate availability.
The exterior is a hard plastic, the interior working bit is all metal, well it seems that way when looking inside and it certainly feels heavy.
I havent put that much film through mine, around 200 rolls tops but I happened to have it in my hand over Christmas New Year, great negs.
Have a look here and check out his review by clicking on the image of his camera then scroll down in his written review and click on his, here under the paragraph heading, Sample Images.
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Mick.