Saturday, August 9, 2008

Making Photographs:07

a textbook by Philip Greenspun; revised January 2007

(after last publication)


Panoramic Cameras

Any camera can be a panoramic camera. You need only take a negative to a professional laboratory and say "make me a long skinny print from this portion of the negative". Or take a negative to any lab and say "make me a big print from this negative". Once you get home, use a pair of scissors to trim the big print until it is long and skinny and contains the subject matter of interest. This may sound absurd but it is in fact how most 35mm "panoramic mode" cameras operate. They use the same lens as in normal mode and mask off the top and bottom of the frame. Then the laboratory knows that you wanted a long skinny print and it is obvious which portion of the neg to print (i.e., the non-blank portion). APS cameras do the same thing except that they record the panorama mode magnetically on the back of the film. The entire frame is exposed and you could later change your mind and ask the lab to print the whole frame.

You won't get very high image quality if you print from only a tiny portion of a tiny negative. But that doesn't mean you need a true panoramic camera. You could just use a big view camera and bring the resulting 4x5, 5x7, or 8x10 sheet of film into a pro lab and tell them to print only the central portion.

If that seems like a waste of film and effort, then the Fuji 617 that I own is for you. Fuji takes one of their 5x7 view camera lenses and attaches it to a body that handles 120 and 220 roll film. So the photographer is freed from the bulk of the 5x7 view camera, from the drudgery of loading sheet film into film holders, and from having to spend $6 per exposure on film and processing (instead it is perhaps $3 per exposure).





Panoramic cameras don't have the perspective correction flexibility of the view camera from which they were cut down. This is very annoying if you're trying to capture architecture in a city. Panoramic cameras don't have the close-focus capability of view cameras. This is annoying if you want to include a person's face prominently in your image. Panoramic cameras can be unbelievably expensive compared to the view cameras from which they are derived. For example, Linhof makes a 617 camera similar to my Fuji. A Schneider 72mm lens for the camera is $4000. The same lens ready for use on any view camera was $1500 (in December 1998).

There are panoramic cameras that do things you could never do with a view camera and cropping. These have rotating lenses that capture up to 360 degrees onto long strips of film, e.g., the $650 Spinshot camera makes 7 frames on a 36-exposure roll of 35mm film. The Noblex is the standard rotating-lens 120 roll-film camera. It captures 150 degrees on a 6x12 frame.

I'm not really an expert on panoramic photography but I think that the main advantage of the fixed lens camera is simplicity. A camera with a rotating lens can produce very strange results if the lens does not rotate smoothly. The big advantage for the rotating lens cameras, in addition to wide field of view, is that they are free of the edge distortion and light falloff that you get with wide angle lenses.

One thing to keep in mind is that if your panoramic camera produces an image that does not fit into a 4x5 enlarger, you won't be able to print images yourself in a darkroom and will be forced to used a professional laboratory where they have an 8x10 enlarger. Note that 6x12 fits in a 4x5 enlarger but 6x17 does not.

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