Lens Focal Length Equivalents / by Jake Horn

While picking out lenses to use on my 6x9 format Fotoman camera, I got frustrated trying to convert angles of view and focal lengths back into terms I could relate to (i.e. 35mm). Some sites had conversions for only one format and the people on forums spent too much time squabbling over diagonal vs longest edge conversions. 

I decided to pick one conversion method and create my own table. This chart is supposed to be a guide, and a few millimeters difference won't matter if you're trying to get a feel for a lens in a different format. I want to share this with everyone that rummages the net for which Schneider Angulon XL is comparable to their favorite Canon landscape lens.

  Conversions in the grey box convey what the lens would be like in terms of 35mm Full Frame

Conversions in the grey box convey what the lens would be like in terms of 35mm Full Frame