<p>Long ago I used to photograph architectural models in the course of my work and in fact they were all models of interiors that had to be photographed so as to simulate the eye level of a person in the actual building. Sometimes the model maker arranged for parts of the side to be removeable and I used a small camera in that case, but never simulated a true eye level. Sometimes in those cases and always when the side was not removeable I used a modelscope. The modelscope is intended for viewing models in this context. It is a type of endoscope with a prism at the end to provide the right angled view. <br>
There are AFAIK two types. The one I used was primarily for viewing by eye, but came with a set of adaptors to fit lens filter threads. I had to fit the camera to a copy stand because the effective aperture was about F/90! With a 35mm camera the modelscope provided a circular image cut off at top and bottom. I can't remember the lens I used, but it was probably 50mm. I also used a 6x7 SLR and got a circular image within the frame using a 80mm lens. Framing was difficult and I had to use high level supplementary lighting. With the 6x7 I used a Polaroid back to assess exposure and framing.<br>
The other type of modelscope, that I have never seen, I believe has some sort of mounting arrangement itself specifically for photography.<br>
I do not know the manufacturer of the model I used, which belonged to my company and was primarily for clients to view the models. It was simply marked "Made in Paris". <br>
I do not know your location, but the modelscope was bought from an architectural model making business in London called Thorpe Model Makers. They were then in Gray's Inn Road, but I think they later moved.<br>
I found using the modelscope very troublesome.</p>